Watkins Bee Exposure Meter [.1]with instructions [.2] in original box [.3]. Metal actinometer resembles pocket watch case, with disc inserts.Retailer: Burke & James, Inc., Chicago, IL. Manufacturer: Watkins Meter Co. Hereford, England.
Date:
1900-1930
Maker:
unknown
Material:
metal, paper (fiber product)
GUSN:
310856
Accession Number:
2015.62.150.1-.3