There have been four models of the scroll saw, gray Shopsmith mounted and gray on its own stand (sounds like the one you are considering). They were replaced by the current teal models, Shopsmith mounted (still available) and standalone (now discontinued). The newer teal model is very similar to the older gray models but some of the parts were re engineered and won't fit the older ones without some modification.
10ER #23430, 10ER #84609, 10ER #94987,two SS A-34 jigsaws for 10ER.
1959 Mark 5 #356595 Greenie, SS Magna Jointer, SS planer, SS bandsaw, SS scroll saw (gray), DC3300,