First Issue Stamp Forgeries

Russia, Army of the North Genuine

1919, Russia, Army of the North, #1, Genuine

(1.) The circles around the numerals of value are double lined.
(2.) Neither of the 5's touch the circle.
(3.) Exp:do. Ref: Varro Tyler, "Focus on Forgeries"

Russia, Army of the North Forgery

Russia, Army of the North, Forgery of #1

1.) Both circles are almost solid, rather than double lined.
2.) One or both 5's touch the circle. In this case both of them do.
Exp:do. Ref: Varro Tyler.