[Counting chamber with Thoma ruling] [realia] : 6482 / designed by Richard Thoma.

ArchivalResource

[Counting chamber with Thoma ruling] [realia] : 6482 / designed by Richard Thoma.

1 counting chamber : glass ; 7.5 x 2.6 x .4 cm.

Related Entities

There are 2 Entities related to this resource.

Spencer Lens Company

http://n2t.net/ark:/99166/w68966zq (corporateBody)

Thoma, Richard, 1847-1923

http://n2t.net/ark:/99166/w6sv0j6w (person)