Consecutive Numbered Duo's

1941 - Pre War - 17045 with book number 6700

1942 - 36322

1943 - 62571

1943 GECO Marked "rig" - 73720

1944 - 96079

1944 " rig" - 112258

1945 "rig" - 119466

1945 "rig" - 119467