If you have not ever owned a 71G
It looks and seems exactly like a Model M, except that when you press a key - nothing .....
A rubber dome keyboard, nothing more.
My first mistake was buying one for $12.95, thrilled that I had gotten a set of keycaps for that price - only to discover that they were not Model M compatible, either.
A 71G is a NON-CLICKY IBM Model M keyboard.