Ensign Midget model 22 miniature camera, manufactured by Ensign Ltd. between 1934–40, in comparison to a type 135 film roll (perforated).  The original paper-backed film roll had the same width, but was unperforated.
<a href="//commons.wikimedia.org/wiki/User:Franz_van_Duns" title="User:Franz van Duns">Franz van Duns</a>
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<span class="int-own-work" lang="en">Own work</span>