So I just checked my caps box and I am 100% sure, this is a genuine Panasonic one, probably very old and very beaten up.
(My sample is not from ebay, Alibaba or other questionable sources...)
- slightly upward bent "T" venting, looks the same
- "+105oC" (note the "+")
- "[M] CE FC" (note the "CE", so probably newer)
- printing / coloring looks the same
- rubber seal looks the same
edit: the batch number printing is quite different, but that simply might have changed over the decades; as the "physical parts", i.e. can and seal, are the same, one could probably ignore this
I would return it, these really old caps might fail anytime soon, there is a reason for a stated "shelf life"...