Day of Knowledge 1981

Now showing: Algeria - Postage stamps - 1981 - Day of Knowledge - 2 stamps.

1981 Day of Knowledge

16. April WM: None Sheetsize: 25 Engraving: Héliogravure Perforation: 11¾

[Day of Knowledge, type SH] [Day of Knowledge, type SI]
No. Type D Mint Condition Unused Used Letter/FDC
774 SH 0.60D 0.27 - 0.27 - USD  Info
775 SI 0.60D 0.27 - 0.27 - USD  Info
774‑775 0.54 - 0.54 - USD 
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