The 8th International Engravers' and Flexographers' Convention in Vienna June 17-21 1987 1987
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1987
The 8th International Engravers' and Flexographers' Convention in Vienna June 17-21 1987
17. June WM: None Sheetsize: 50 Design: W. Pfeiler Perforation: 13¾
![[The 8th International Engravers' and Flexographers' Convention in Vienna June 17-21 1987, type BBY]](https://www.stampworld.com/media/catalogue/Austria/Postage-stamps/BBY-s.jpg)
