Spencer Model 60 Field Microscope, 1921

 

The Spencer model 60 was designed around WWI primarily for use in frontline hospitals. The unusually heavy and thick-shelled metal carrying case is highly resistant to impact and shock. Some of these microscopes saw use in civilian laboratories but the accessories are more adequate for military use in frontline hospitals. It seems that civilian doctors were less likely to buy a 60 Model which, in the late 1920s, had the price tag of $160 for the 60H model represented here. This was about the average monthly salary. The conventional corresponding models were by far cheaper hence more affordable. 
The Spencer Model 60 is considered classic in terms of design. Therefore, it was chosen by the Microscopical Society of Southern California (MSSC) to form their emblem.

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