GB Printing

<body topmargin=0 leftmargin=0 marginheight=0 marginwidth=0> <table cellpadding=0 cellspacing=0 border=0><tr> <td valign="top" colspan=2 height=100 BGCOLOR="#006699" TEXT="#080000"> <div> <B>Stamps of King George V Silver Jubilee -  GB Printings</B></div> <div> <A HREF="index.htm" TARGET="_top" TITLE="King George V Silver Jubilee"><U><B>Home</B></U></A><B>               </B><A HREF="id8.htm" TARGET="_top" TITLE="Information"><U><B>General Information</B></U></A><B>               </B><A HREF="id16.htm" TARGET="_top" TITLE="Stamps"><U><B>Stamps</B></U></A><B>               </B><A HREF="id3.htm" TARGET="_top" TITLE="Postal History"><U><B>Postal History</B></U></A><B>               </B><A HREF="id298.htm" TARGET="_top" TITLE="Location"><U><B>Variety Locator</B></U></A><B>         </B></div> <div> <A HREF="id28.htm" TARGET="_top" TITLE="Site Information"><U><B>Help/Site Information</B></U></A><B>                              </B><A HREF="id147.htm" TARGET="_top" TITLE="Search"><U><B>Search</B></U></A><B>                               </B><A HREF="mailto:philatel2@yahoo.com" TARGET="_top" TITLE="mailto:philatel2@yahoo.com"><U><B>Contact Me</B></U></A></div> <div> </div> </td> </tr><tr> <td valign="top" width=165 BGCOLOR="#FFCC66" TEXT="#080000"> <div> See <FONT SIZE="1" COLOR="#0000FF" FACE="Arial" ><A HREF="id274_gb.htm" TARGET="_top" TITLE="Great Britain"><U><B>lower table</B></U></A></FONT> for listing of Stamps section</div> <bR> <DIV ALIGN="LEFT"></DIV> <div> <TABLE BORDER="0" CELLPADDING="2" CELLSPACING="1" WIDTH="112" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="BOX" RULES="ALL" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 14 ><NOBR><div> <A HREF="id274.htm" TARGET="_top" TITLE="Great Britain"><U><B>GREAT BRITAIN</B></U></A></div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 14 WIDTH="106"><div> - <A HREF="id369.htm" TARGET="_top" TITLE="Timeline GB"><U>Timelines</U></A></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 14 WIDTH="106"><div> - <A HREF="id370.htm" TARGET="_top" TITLE="GB Essays"><U>Essays</U></A></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 14 WIDTH="106"><div> - <A HREF="id372.htm" TARGET="_top" TITLE="Colour Trials"><U>Colour Trials</U></A></div> </tD> </tR> <tR> <tD VALIGN=TOP BGCOLOR=#FFFFFF HEIGHT= 14 ><NOBR><div> - <A HREF="id421.htm" TARGET="_top" TITLE="GB Printing"><U>Printing Information</U></A></div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 14 ><NOBR><div>    - <A HREF="id420.htm" TARGET="_top" TITLE="Control Letters"><U>Control letters</U></A></div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 14 ><NOBR><div>    - <A HREF="id424.htm" TARGET="_top" TITLE="Other sheet markings"><U>Sheet Markings</U></A></div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 14 WIDTH="106"><div>    - <A HREF="id422.htm" TARGET="_top" TITLE="GB perforation 1"><U>Type 5 perfs</U></A></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 14 WIDTH="106"><div>    - <A HREF="id423.htm" TARGET="_top" TITLE="GB peprforation 2"><U>Type 6 perfs</U></A></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 14 ><NOBR><div> - <A HREF="id373.htm" TARGET="_top" TITLE="GB Specimen"><U>Specimen stamp</U></A></div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 14 WIDTH="106"><div> - <A HREF="id278.htm" TARGET="_top" TITLE="Prussian Blue"><U>Prussian Blue</U></A></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 14 WIDTH="106"><div> - <A HREF="id220.htm" TARGET="_top" TITLE="GBBooklet"><U>Booklets</U></A></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 14 WIDTH="106"><div> - <A HREF="id260.htm" TARGET="_top" TITLE="Great Britain"><U>Perfins</U></A></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 14 WIDTH="106"><div> - <A HREF="id379.htm" TARGET="_top" TITLE="GB Postal Orders"><U>Postal Orders</U></A></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 14 WIDTH="106"><div> - <A HREF="id539.htm" TARGET="_top" TITLE="GB Handstamps"><U>Handstamps</U></A></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 14 WIDTH="106"><div> - <A HREF="id532.htm" TARGET="_top" TITLE="Slogans Great Britain"><U>Slogans</U></A></div> </tD> </tR> </TABLE></div> <bR> <div> <TABLE BORDER="0" CELLPADDING="2" CELLSPACING="1" WIDTH="127" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="BOX" RULES="ALL" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 19 WIDTH="121"><div> <B>STAMPS</B> <FONT SIZE="2" COLOR="#003399" FACE="Arial" > <A NAME="gb"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A></FONT></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 14 WIDTH="121"><div> <A HREF="id5.htm" TARGET="_top" TITLE="Common Design"><U>Common Design</U></A></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 14 WIDTH="121"><div> <A HREF="id6.htm" TARGET="_top" TITLE="Other Countries"><U>Other Countries</U></A></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 14 WIDTH="121"><div>    - <A HREF="id438.htm" TARGET="_top" TITLE="Australia"><U>Australia</U></A></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 14 WIDTH="121"><div>    - <A HREF="id141.htm" TARGET="_top" TITLE="Canada"><U>Canada</U></A></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 14 WIDTH="121"><div>    - <A HREF="id274.htm" TARGET="_top" TITLE="Great Britain"><U>Great Britain</U></A></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 14 ><NOBR><div>     - <A HREF="id136.htm" TARGET="_top" TITLE="New Zealand Dependencies"><U>NZ Dependencies</U></A></div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 14 WIDTH="121"><div>     - <A HREF="id138.htm" TARGET="_top" TITLE="Papua"><U>Papua</U></A></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 14 WIDTH="121"><div>     - <A HREF="id139.htm" TARGET="_top" TITLE="South Africa"><U>South Africa</U></A></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 14 ><NOBR><div>     -<A HREF="id161.htm" TARGET="_top" TITLE="Southern Rhodesia"><U>Southern Rhodesia</U></A></div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 14 WIDTH="121"><div>     - <A HREF="id163.htm" TARGET="_top" TITLE="OC Printers"><U>Printers</U></A></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 14 WIDTH="121"><div> <A HREF="id66.htm" TARGET="_top" TITLE="Booklets"><U>Booklets</U></A></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 14 WIDTH="121"><div> <A HREF="id166.htm" TARGET="_top" TITLE="Perfins"><U>Perfins</U></A></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 14 WIDTH="121"><div> <A HREF="id48.htm" TARGET="_top" TITLE="Dates of Issue"><U>Dates of Issue</U></A></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 14 WIDTH="121"><div> <A HREF="id49.htm" TARGET="_top" TITLE="WAD"><U>Classification</U></A></div> </tD> </tR> </TABLE></div> <bR> </td> <td valign="top" height=380 BGCOLOR="#FFFFFF" TEXT="#080000" background="045fa583.png"> <div> <I><B>Printing and Production of Great Britain issue Stamps</B></I></div> <bR> <DIV ALIGN="LEFT"></DIV> <div> <TABLE BORDER="0" CELLPADDING="2" CELLSPACING="1" WIDTH="653" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="BOX" RULES="ALL" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP COLSPAN=2 HEIGHT= 65 WIDTH="645"><div> Great Britain stamps printed by Harrison's & Sons' at High Wycombe factory. Used <B>photogravure </B>technique. Principle - photographed images printed on specially prepared copper cylinders. Diagram below lists steps</div> <bR> </tD> </tR> <tR> <tD VALIGN=TOP COLSPAN=2 HEIGHT= 375 ><NOBR><div> <IMG SRC="90205610.jpg" border=0 width="517" height="353" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP COLSPAN=2 HEIGHT= 786 WIDTH="645"><div> <B>Process:</B></div> <bR> <div> Once design completed multiple copies of image printed onto special photographic glass plate (multipositive plate). Strong light is passed through multipositive plate causing images to be fixed onto carbon tissue paper coated with light sensitive gelatine. Carbon tissue then wrapped around a resin covered copper plated cylinder. Film "developed" by sprayingcylinder with hot water. Leaves the film of gelatine adhered to resin. Amount adhered varies in thickness in proportion to light and shade of photographed images.</div> <bR> <div> Etching solution (contains ferric chloride) burns off gelatine in proportion to its thickness (The thinner the gelatine the deeper the recesses on the cylinder and the deeper the tones produced). <FONT SIZE="2" COLOR="#0000FF" FACE="Verdana" ><A HREF="id420.htm" TARGET="_top" TITLE="Control Letters"><U><I>Control marks, cylinder numbers</I></U></A></FONT>, register lines, perforation guides added. Following checking of cylinder proofs (printed usually in black) for errors and after corrections, cylinders are chromium plated and ready for printing use. </div> <bR> <div> Pre-watermarked paper (obtained from John Aiken Ltd of Portals) in large reels gummed with gum arabic from Sudan (supplied by Samuel Jones Ltd) were used. </div> <bR> <div> Photogravure printing machines (also called web-machines because they printed a "web" of paper) used were specially constructed by Timson Ltd of Kettering. Worked on rotary principle.</div> <div>      </div> <DIV ALIGN="LEFT"></DIV> <div> <IMG SRC="9072c590.jpg" border=0 width="300" height="345" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <div> Each revolution printed one double pane sheet  i.e. 2 x 120 stamps. </div> <bR> <div> <FONT SIZE="2" COLOR="#000000" FACE="Verdana" >Stamps were then guillotined as double pane sheets and </FONT><A HREF="id422.htm" TARGET="_top" TITLE="GB perforation 1"><U><I>perforated</I></U></A> <FONT SIZE="2" COLOR="#000000" FACE="Verdana" >prior to final checking, packing and despatch.</FONT></div> <bR> </tD> </tR> </TABLE></div> <bR> </td> </tr></table></body>