RE: Near 100yr old turkey gun? Load?
I would take a 2 3/4 lead shot #6 and head to the turkey woods and call in a Big ol Tom good and close and take the bird with the gun. I would then have a good photo taken with the bird and the gun and with you as well and then place the gun up for a keep sake and leave it at that.
You have gained something that most turkey hunters would love to be a part of and something that a family can look at and understand how important this gun stays with the family...BT