This needle? Is 13 inches long with a 4 ½ inch handle. It is very well made. The handle looks like ebony. Any suggestions?

Maybe a butchers trussing needle

Seen similar used to stitch up livestock.   Had to use a Visegrip to hold a smaller needle, the hide is that tough.

Thanks for your input. I will check this out.
Dick

possibly a ham stringer?

Possibly a rib stitch needle.  Fabric covered aircraft had the covering stitched to the wing and empenage ribs to keep it from peeling off in flight.