Woolly Bear: 60 inches isn't a long recurve; it's about a mid-range length recurve, probably about the best length for a 28-inch draw. On the other hand 52 inches is a short recurve, 48-inches even shorter and about as short as they get.
Lots of bows made in the 50s are in the 58-62-inch range. Most bowyers nowadays offer recurves longer than 60 inches as well. Fairly easy to find a one-piece recurve in 62 inches. Not as many in 64 inches. In a three-piece takedown, it's pretty easy to find 66-inch lengths and even a few 68 inchers. Good luck in your quest.