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Colonel John Mackenzie (late Royal Army Medical Corps), 1932, by Major A. McKenzie Annand
- Date:
 - 1975
 
- Reference:
 - RAMC/1216
 
Licence: Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
Credit: Colonel John Mackenzie (late Royal Army Medical Corps), 1932, by Major A. McKenzie Annand. Source: Wellcome Collection.
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