Too bad about the damage to this key date. Probably a bargain at that price. As a hole filler its's worth more than that as G4 is listed at $120. Perhaps $40-$50 for this?
Seems like a good score for $6. A 1901-S for the price of a coffee is something I would do. 1901 was one of the interesting years for Barber dimes, with two reverse types in transition.
Ouch, that one worked hard for a living. Better-date coin for six bucks, though? Yep. Good grab, no doubt about it.