Original vintage optical industry trade magazine ad for SPENCER LENS COMPANY of Buffalo, NY. Spencer Duboscq Colorimeter No. 10125 for chemical analyses. Old 1922 optical medical industry equipment advertisement.
spencer lens company 1922 duboscq colorimeter analysis vintage ad
- Product Code: s250
- Length: 9 inches
- Width: 6 inches
- Pages: 1
- Views: 45
- Availability: In Stock
- $20.00
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