Daryl the Turnscrew you have in your hand is from the Flintlock area so a little older than your Pinfire. The centre blade is for the lock screws and the two larger side blades are for the top jaw screw holding the Flint. The hole inside the ferrule ring next to the blade is for a touch hole pricker whose cap enclosed the turnscrew blade end, this also kept the pricker from being bent.

Ernie

Last edited by damascus; 08/26/18 12:29 PM.
The only lessons in my life I truly did learn from where the ones I paid for!