Date: | 1926 |
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Description: | Dr. Stephen Babcock with an electric centrifuge butterfat tester. |
Date: | |
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Description: | A stonecutter, a cooper or smith (identified by the tools of their trade) and a girl with a pail are standing on the left in contrast to a group of ladies ... |
Date: | |
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Description: | Interior full-length portrait of Dr. S.M Babcock and his tester for the separation of milk fat, which is a hand-cranked dairy centrifuge. |
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