File:John Stenhouse's mask.png

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	03:08, 9 January 2006		266 × 276 (25 KB)	Ddlamb~commonswiki	From Edward L. Youmans' Class-Book of Chemistry, New York, 1858 - accessed here [http://www33.brinkster.com/iiiii/gasmask/stenhouse.html]

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