The 75th Anniversary of the Death of Ludwig Boltzmann 1981
Rāda: Austrija - Pastmarkas - 1981 - The 75th Anniversary of the Death of Ludwig Boltzmann - 1 marka.
1981
The 75th Anniversary of the Death of Ludwig Boltzmann
4. septembris SV: Neviens Lapas izmērs: 50 Dizains: Alfred Nefe y Sepp Buchner. Perforēšana: 14¼ x 13¾
![[The 75th Anniversary of the Death of Ludwig Boltzmann, veids ATV]](https://www.stampworld.com/media/catalogue/Austria/Postage-stamps/ATV-s.jpg)
