Siren

Not issued, but was sold unofficially on the black market.
Secret signs: The left vertical line of the frame goes down by 0.2 - 0.5 mm, and in the right corner the lower inner horizontal line of .. Read more »the frame goes to the right by about 0.2 mm. Most stamps have both marks, but some do not have one of them. For all stamps, dark background lines appear on the light ornament in the lower part of the ornamented frame, two of which cross the outer line of the frame.
Attention! Stamps without secret signs are forgery.

Country:	Armenia
Type:	Postage stamps
Series:	First Constantinople edition
Nominal:	25 Armenian ruble
Year:	1921
Material:	Thick coated paper
Size:	34 x 25 mm
Perforation:	Imperforate