This is an original screw tip from an early Pennsylvania powder horn. The horn is gone, but the tip survived in a PA antique shop years ago. Top two pictures show opposite sides of the screw tip. Dimensions: 2-9/16" tall, 1" across base, 10.2/16" inside diameter about a quarter inch up into threaded section. Screw tip is in good shape, solid, and should complement a horn missing its tip. Price = $110 [includes $10 for shipping].
Just added 3rd side view with darker background to show tip's outline better.
Shelby Gallien