[Mr70]

1100761
*1966 Pontiac Tempest 6 cyl. w/o P/S or A/C or Tranz. Ign.
*1967-68 Pontiac Tempest 6 cyl. w/o P/S or A/C.
*1969-70 Pontiac Lemans 6 cyl. w/o P/S or A/C.
*1967-68 Pontiac Firebird 6 cyl. w/o P/S or A/C.
*1968 Buick GS & Spcl.

1100691
*1966 Buick GS & Spcl.

1100921
I believe used on similar cars as above,only w/SB V8's w/P/S & A/C.

The dates you show could be later service replacements for earlier dated vehicles too.