I was looking to see if I could find any dates in the philco. About half of the original tubes were still in it. Each tube was marked "Philco Cool Chassis TV" and had a number 6805 towards the bottom... except for one... the tuning eye tube was marked 6826. On the yoke rear cover, I found 6808 below the part number. The degaussing coils have 6724 below the part number. Would it be a good assumption that these are 1968 dates, with the number week following?
I couldn't find anything on the CRT. Had no markings anywhere other than a serial number on a piece of paper.