Spencer bright-line counting chamber with improved Neubauer ruling [realia] : 79.22.36.1 / designed by Harry G. Ott.

ArchivalResource

Spencer bright-line counting chamber with improved Neubauer ruling [realia] : 79.22.36.1 / designed by Harry G. Ott.

1 counting chamber : glass, metal, and paper ; 7.5 x 3.3 x .7 cm.

Related Entities

There are 2 Entities related to this resource.

Spencer Lens Company

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

Ott, Harry G.

http://n2t.net/ark:/99166/w6pk3c3x (person)