Ramrod48,
The bullets are most likely for a .38-55 BPC rifle. They could be for hunting or silhouette. What's the bullet weight? Most PP shooters cast or swage and roll their own and would not purchase someone else's bullets due to unknowns in bullet weight variances, hardness, paper patch material condition, patch lube, etc. Since you don't know the alloy composition nor anyting else about the bullets, my guess is they are only worth the value of scrap lead of unknown purity, therefore not much.
Wayne