The two pictured transmissions' numbers identify as follows:
PK4028424 5444 0190
Equipped on a 1976 - 1977 440 standard engine in a C-body.
190th A727-B transmission built on Wednesday, June 23, 1976 at the Kokomo Indiana plant.
PK3681052 4191 725
Equipped on a 1973 340 in an A-body, B-body, or E-body. Extension housing has provision for the damper weight. Also used in 1972 340 models.
725th A727-A transmission built on Wednesday, January 17, 1973 at the Kokomo Indiana plant.
NOTE: If there is another digit after the "725", the daily count number differs from stated.
Numbers listed as I read them in the pictures. Post if different.