Hi
Miss-O, ipdb says Feb. 1969 has 2 inch flipperbats, Post Time, April 1969 has 3 inch flipperbats, Suspense, May 1969 has 2 inch flipperbats, Smart Set, June 1969 has 3 inch flipperbats, Paddock, Sept. 1969 and the following pins have 3 inch flipperbats.
The OP in his post-1 writes about 2 inch flipperbats - edited his post to the range "1959 to 1967" (to add 'Rocket') --- well, this search http://www.ipdb.org/search.pl?mfgid=413&yr=1967&sortby=date&searchtype=advanced shows all the 1967-pins --- I am proud owner of ("Cabaret Dec. 1968",) "Jolly Roger" and "Shangri La" (Shangri La was my first love in the Arcade times (very late 1960ies) --- to me the Shangri La is one of the best 2 inch flipper pins) --- I wish I'd also have an Pit Stop and an Apollo (and more of the aera). Greetings Rolf