Marking exposed film cans

[Daniel D. Teoli Jr.]

eBay Photo: Fair Use

Here is a film from England for sale on eBay showing how an exposed film can was marked. Don't know what the markings after 'Rated @ 80' means. 80 is the ASA, maybe the rest is something about a neutral density filter?

Artist's tape, white or colored gaffers / spike tape or medical tape is good for marking cans. 

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DDTJR Small Gauge Film Archive

Edited May 8, 2022 by Daniel D. Teoli Jr.

[Daniel Klockenkemper]

I'd suppose that "EM. NO." is short for emulsion number.

[Brian Pritchard]

It is Emulsion Number 501 Roll16 Cut 1.  The 2000 ft rolls would have been cut  into 2 parts before cutting down to 400 ft lengths

Brian