Googled it: 1982 they changed.
I was playing it too safe by using only pre-'80, actually pre-'82 is good.

A 1943 wheat penny is worth $300,000.00, 300K USD !

https://www.pennymatrix.com/2019/05/what-year-did-penny-change-from-copper.html

Ron aka "Rip" for Riflecrank Internationale Permanente
NRA Life Benefactor and Beneficiary
.458 Winchester Magnum, Magnanimous in Victory
THE WALKING DEAD does so remind me of Democrap voters. Donkeypox.