IIRC -There are 3 types:

All have black cases but with different lettering color & date codes (offered by Mopar Performance) & other vendors

1)-white lettering & pentastar , date code of 419
(41st week of 1969) correct for 1970

2)- white lettering with pentastar, date code of 321 (32nd week of 1971) correct for 71 and Im assuming late 70?

3)- yellow lettering, small pentastar, and date code of 271