The 15th Colloquium Spectroscopicum Internationale 1969

Now showing: Spain - Postage stamps - 1969 - The 15th Colloquium Spectroscopicum Internationale - 1 stamps.

1969 The 15th Colloquium Spectroscopicum Internationale

26. May WM: None Sheetsize: 50 Engraving: F.N.M.T. Perforation: 13

[The 15th Colloquium Spectroscopicum Internationale, type BRX]
No. Type D Mint Condition Unused Used Letter/FDC
1818 BRX 1.50Pta 0.27 - 0.27 - USD  Info
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