What were the requirements for a commercial pilot's license in the 1960s?

In the USA, the requirements were very similar to what they are now - 250 hours total flight time, 100 hours PIC time, 50 hours of cross-country time, one flight of at least 250 nautical miles as PIC with landings at two other airports at least 100 miles apart, 20 hours of dual instruction in addition to private pilot dual instruction requirements (i.e. 40 total dual) including 10 hours instrument training time and 10 hours complex aircraft training time. 3 hours of the 20 hours of dual instruction were required in preparation for the flight test within the past 90 days including training in all commercial-level maneuvers. You also had to pass a written exam of 100 questions, an oral exam, and obtain at least a 2nd Class medical certificate. For night flying privileges at least 10 hours of night flying experience including 20 night landings and a night cross country flight of at least 100 miles was required. Unlike now, there were no provisions for earning a CPL in as little as 190 hours. I know because I started training for my CPL in 1969 and I haven't forgotten what was required. .All these rules were codified in the 1950's and weren't radically different from what had been required since 1928.