1924-k peace lady silver dollar what does the k stand for?

There is no such thing as a 1924-K dollar. You may be seeing the intertwined AF monogram of the designer.

1924 Peace Silver Dollars were minted in two locations: Philly, , there is no mint mark; and, San Francisco, carrying the mint mark of "S."

As an addendum, there is a 1924 Peace dollar with a broken Wing, VAM-5A - its value in Fine condition is: $75.00.