Artefacts
Alcatraz wall, 102 g
Alcatraz wall
Berlin wall
Berlin wall
Tunguska wood, annual stamp 50 years
Tunguska wood, annual stamp 50 years
Envelope - 3rd INTELSAT IV
Envelope - 3rd INTELSAT IV
Sample 2023 - Ensisheim impact field
Sample 2023 - Ensisheim impact field
Sample 2023 - Ensisheim museum (reconstruction)