Wow some amazing cards. I've recently become interested in vintage Kems and was hoping someone might have an answer to this question.

After a new set of Kem cards I bought degraded to an unusable condition after 3 months, simply sitting in their case under my coffee table in an Australian summer I started looking for older ones from the original company. I bought a nice 845 bridge size double set in the upright, presumably Bakelite, case and an unopened poker size 1082 deck in the soft plastic case. My question is when did Kem start making poker size cards and were they ever made back in the Bakelite day as the very old decks all seem to be bridge size.