Help Identify A Stamp.

There are actually five letters on the stamp. The letter in the upper right corner (easier to see on some of the other stamps in the issue) is the first letter of the Armenian spelling of "ruble". The four letters under the hammer and sickle are H.S.X.H., the initials for Hayastani Soc'ialistakan Xorhrdayin Hanrapetut'iwn, an early version of the name of the Armenian Soviet Socialist Republic, with "Hayastani" (of Armenia) instead of later "Haykakan" (Armenian) and the words for "Soviet" and "Socialist" reversed.

Sorry, rod. For the record, your 25000r values are not genuine after further clarification and study. Gah.

Thanks HB, noted, and album page pencilled in.

Hello stamp community thank you in Advance. 498g?? Perforated 10 top and bottom and 11 on the sides