Looks like it sports a bubinga riser. If so, it's a '65. Sold for $49.95 If it's Brazilian rosewood, it's a '64 also $49.95.
Recommended fistmele is 6 1/2" - 7 1/2". I'd start with an old 55" string (actual length) and start twisting it up until it shot right. Then make a new one that length. These bows were not AMO compliant, so the you can't go by the 3" less than bow length AMO rule.
Al (Als Decals)