Ha ha ha! It's a fabulous joke. Almost as good as that guy from Oz that posted the $99,999,999.99 BIC pen.
So, in 1939 they were already using rectangular CRT's?????
That mask and cabinet are 1970's or later. The item # of the the newer TV stuffed into the box, probably from an auction or bankrupt sale, is #1939. It's NOT the year.