March 2, 1942, Genuine #1, London Printing

1.) Base stamp is Great Britain #236, watermark 251, scarlet color
2.) Overprint is 14 mm long, black in color with square dots

Exp:do
Ref:Scott Catalog

 

January 1, 1943, Genuine #10, London printing

1.) Base stamp is Great Britain #259, watermark 251, vermillion color
2.) Overprint is 13.5mm long, blue-black in color, also with square dots

Exp:do
Ref:Scott Catalog