Hermann von Helmholtz death 100th issue of Germany
|
Short desc: Hermann von Helmholtz death 100th
Issuer: Germany Date: 9/8/1994 Occasion: Hermann von Helmholtz death Number/Year: 100 Consists of 1 stamp: (See stamps as list) 100(pf) d=Hermann von Helmholtz & diagram of eye Record of changes |
|
