Stressful
Zachary Abel
Nested Dice 6
Nested Dice 10
Platonic Dice
Stella Octangula
Wormhole Sculpture
G4G George Hart
Sliderule
Comptometer ST
No. J317903/S1415 (1931)
Curta type I Calculator
No. 57064 (1964)
Swift Schnellrechner
1970
Walther RMKZ Calculator
No. 10890 (1933?)