Help! How can I tell if a roll of DS8 has been exposed?

[oldtech]

Hello all.
Newbie here, and not too clever - I may have foolishly put back in the fridge, among the fresh ones, a roll I exposed this summer. Is there any way I can tell which is which? They're all Fomapan R in their nice white cardboard boxes, and they all look the same to me in subdued light.
Any help would be much appreciated - I wouldn't like to send a blank roll to Germany for developing, or maybe expose it twice :oops:
Thank you!
Guido

[richard p. t.]

Yes, there is. as with all roll movie film, if it.has been in a camera then the end that was inserted into the slot in the spool will be folded slightly.

[oldtech]

Thank you, Richard. I can see the slight bent in two of the four rolls I shot, but strangely not in the other two, one of which has been shot. I guess I'll send them all to Andec just to be on the safe side.