My main focus when it comes to old Parkies is the 1963-64 set, but the 1953-54 set is a close second. Last weekend, I bought 5 cards from the 1953-54 Parkhurst set.
These 5 put me at 37 out of 100 cards in the set. Once I finish up my 1963-64 set, this one will become a bigger focus.