M0003217EA: Two men working in a laboratory / M0003217EB: Six people working in a laboratory

Date:
02 November 1932
Reference:
WT/D/1/20/1/26/32

Licence: In copyright

Credit: M0003217EA: Two men working in a laboratory / M0003217EB: Six people working in a laboratory. Source: Wellcome Collection.

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