1964 Austrian Proof Set, does anyone know what it is worth?

SanctionII

As a kid I acquired a 1964 Austrian Proof Set as a gift from my parents. Does anyone know anything about them, including mintage and value. Thanks.

AuldFartte

There are 3 different sets listed in the '05 Krause:

PS2 (9 coins) mintage 69,731 $55.00

PS3 (9 coins) mintage 2,700 $365.00 (error set)

PS4 (7 coins) mintage unlisted $22.50