Just Googled 'em. Hmmm they look mightly um, practical ... best I could come up with

Found a Creedmore version and that looked interesting but they ain't what you would call ... beautiful ... y'know like a Sharps.
Seems like the calibres they was made in is mostly the unusual (by todays standard) types, 44-whatever, which make 'em harder to find brass/dies/moulds for. Obviously one could lay out for custom stuff but that costs mightily.
OK, so what's the attraction LQ?