Prizes for improved vermin traps : First, £50, second, £25 / John Colam.
- Colam, John, 1946-
- Date:
- [between 1880 and 1889?]
Licence: Public Domain Mark
Credit: Prizes for improved vermin traps : First, £50, second, £25 / John Colam. Source: Wellcome Collection.
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