Reissue zipper markings. Has anyone seen this type of marking before?

Hi all, my friend bought a Chanel reissue 226 from fashionphile (12 series) and I noticed that her zipper marking, EP, is vertical e.g. the E on top of the P rather than the usual horizontal EP. Her zipper font matches the zipper at the top of EP's homepage (http://www.eclair-prym.eu/en/ep-history/). Has anybody ever seen this on reissues from 12 series or other series before? Just looks odd.

Thank you in advance for your help.
 

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