Hipo carb and Distributor tag question

Ford 2V (2100-A series*) and 4V (4100-A series**) carburetors in the mid to late 1960s all had assembly tags with the engineering number, design level, and year-month-week of manufacture.

Ignition distributors in new 1960s cars were die stamped on their main bodies with their engineering number and date code so had no identification tags.

* There was a Ford Motor Company designed Holley® made 2V carburetor made for flat head Ford engines under as a 2100 Series model long before the Ford 2100-A Series. The two designs are very different in design appearance and parts. Some functional parts in 1960s Ford carburetors were ones that evolved from carburetors for flat head Fords decades before.

** As I know them and think I understand them, the 4100 Series was created by Ford to use instead of the Ford-Holley 4000 Series in the mid-1950s. The very first Ford 4100 models share features with some of the first Ford-Holley 4150/4160 carburetors, including removable brass plugs in the sides of fuel bowls to inspect fuel levels while the engines were idling. By the 1960s the 4100-A Series had evolved a lot with many subsystem design changes.