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The 'Proto' (One Hour) Mark II Self-Contained Oxygen Breathing Apparatus (booklet)
Full title - 'Instructions for Using The ''Proto'' (One Hour) Mark II Self-Contained Oxygen Breathing Apparatus (Davis's Patents)' 27 page booklet, stapled at centre. Undated.
Collection Area
Industry
Item Number
2017.38/17
Creation/Production
Siebe Gorman & Co. Ltd.
Date: 20th century
Acquisition
Old stock, 27/2/2017
Measurements
Length
(mm): 220
Width
(mm): 140
Material
paper
card
metal
Location
In store
Classification
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