Planck 100th issue of German Democratic Republic
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Short desc: Planck 100th
Issuer: German Democratic Republic Date: 4/23/1958 Occasion: Max Planck birth Number/Year: 100 Consists of 2 stamps: (See stamps as list) 10pf grngray d=h (Planck constant) 20pf dkredvio d=Max Planck 1958 All are wmk=quatrefoil & DDR Record of changes |
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