Unknown headstamps

Forgot this one…https://forum.cartridgecollectors.org/t/7-92-id/34042

Sorry…They are not in my collection,I don’t have any better pictures

Too bad. Can you at least clarify what the symbols/markings are in the 2nd picture of me reply, after the “HC” headstamps?

Awesome thanks for sharing👍

我也有一个TNS1871,不知道是什么时期和公司造的