Packard 56

If something is stamped PED it just means it was originally made by Packard and we can probably look it up.
https://www.mouser.com/c/?q=2962447

These pics are from what I believe are Packard 56.
The top one might be. Sure looks like an unfinished or incorrectly stamped piece. Maybe its a different flavor
See the drawing for that part under "data sheet" https://www.mouser.com/datasheet/2/105/delphi_11292017_02962874_cus01_s01-tif-1267700.pdf
20220117_134555-jpg.jpg
The bottom two are not stamped PED. Perhaps a very similar connector made by a different company.

More 56 females at Mouser
https://www.mouser.com/c/connectors... positions=-&product=Terminals&series=56&pg=3