Maybe got lucky. Real or Replica flipper?

[painter777]

All of those I-J's I've seen have that small hole in the bottom of the base.
I bought one years ago from a dealer at a small local show. He said it was for a I-J, but for $15 I decided to grab it.
Still have it here in a parts box....minus the leaf spring. I robbed the I J's leaf spring to fix one that had rusted in half on a Underwood sight. After cleaning the crud off the Underwood's base I found the .U. stamp.
Charlie-painter777