The serial number is 5263 and it’s a 6’4”
Given that it’s a single fin with a Fins Unlimited fin-box and that it does not seem to have a leash-cup, I would say between 1969 and 1972/73. Bill Bahne was the inventor of the Fins Unlimited fin-box system and made great boards during the '60-'70 era. What is it worth? What someone would be ready to pay for it…
Given that it’s a 6’4", it is newer than 1969 for sure. The color job also indicates that. Lack of a leash plug dates it earlier than 1975, or so. I’d estimate the year of origin at 1972-74.
Value in dollars is subjective. Looks to be in decent shape, but i’s no rare collectible.
Also, if someone is trying to sell this it might be a good idea to clean all that wax off so the actual condition is easier to see.
$200
Needs repair.
$200 is what I’d say but I’ve paid a lot less for better boards.
1972 at the latest.