https://www.arithmeum.uni-bonn.de/sammlungen/rechnen-einst/objekt.html?tx_arithinventory%5Bobject%5D=998&L=0
Herzstark (Badenia TH 10)
badeniath
https://www.arithmeum.uni-bonn.de/en/collection/calculating-in-olden-times/object.html?tx_arithinventory%5Bobject%5D=996&L=2
Herzstark (Badenia TE 10 Duplex)
badeniateduplex
https://www.arithmeum.uni-bonn.de/sammlungen/rechnen-einst/objekt.html?tx_arithinventory%5Bobject%5D=997&L=0
Herzstark (Badenia TE 13)
badeniate
https://www.arithmeum.uni-bonn.de/sammlungen/rechnen-einst/objekt.html?tx_arithinventory%5Bobject%5D=996&L=0
Herzstark (Badenia TE 10 Duplex)
badeniateduplex
https://www.arithmeum.uni-bonn.de/en/collection/calculating-in-olden-times/object.html?tx_arithinventory%5Bobject%5D=997&L=2
Herzstark (Badenia TE 13)
badeniate
https://www.arithmeum.uni-bonn.de/en/collection/calculating-in-olden-times/object.html?tx_arithinventory%5Bobject%5D=994&L=2
Herzstark Elektromens (Badenia)
badenia