So it's an old Stiletto hammer, and I should have known that. Thanks, Stephen. I see that the largest hammer you can now buy from Stiletto is a 21 ounce model with a steel head. But man oh man! The one I'd love to hold in my hand, to test its grip and its balance and its reverberation (hopefully its lack of reverberation) is the titanium 15 ounce model which they claim drives with the force of a 28 ounce steel hammer. If I'd had one of those in my younger days, I might be able to lift my hand above my shoulder now without wincing.
The price? A mere $262.50. I had no idea you could spend that much money on a hammer.
Does anybody have one? Do you like it?