That is not from 1962, rather from the mid 1980's. The 62, first numbers of the serial number are the length, 62" bow from string nock to string nock. All of these Schulz bows were custom made as this one is for an Archer with a 25" draw, no more. That is why the bow is not longer.
I have several Schulz all bamboo bows, 64" and 66". Their serial numbers start with 64 or 66 respectively. They are for longer draws, 64" for 26" draw and 66" for 27-28" draw.
All Schulz bows serial number starts with the numbers associated with the length of that particular bow.
$400-600 tops because of the length, less archers with that short of draw.