Verichrome Pan is relatively new film, it went on sale in 1956. So these are late 50s or 60s:
The Sitcoos Lake boyscout camp on Oregon coast became Alton F. Baker camp in 1962, so these are after 1962. I like to think its right after, before the Beatles and the popularity of the long hair among kids...so it must be 50 years past the expiration date. For the age, the quality is pretty good. 8 pieces of perfectly canned time...and my favorite is #7.