The 50th Anniversary of the Institute of Mathematical Machine 2007
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2007
The 50th Anniversary of the Institute of Mathematical Machine
12. March WM: None Sheetsize: 10 Design: A. Gasparjan Perforation: 12½
![[The 50th Anniversary of the Institute of Mathematical Machine, type RC]](https://www.stampworld.com/media/catalogue/Armenia/Postage-stamps/RC-s.jpg)
