Excerpt from 1887 S,D&G catalogue:
http://www.doublegunshop.com/forums/ubbthreads.php?ubb=showflat&Number=235930&page=15

"Daly hammer guns are offered with the Scott action and Deeley and Edge forend latch. Extension rib and slight engraving on Model 401 for $70.
Model 402 same as 401, but with Purdey double bolt at $80.
Model 403 same as 402 but with 3 pin lock and more engraving at $90.
Model 404 same as 403, but with Cluny Damascus , fine engraving, at $120.
Model 405 , Diamond Quality, with Bernard or Turkish first quality barrels, exquisite engraving at $200."

OK, someone refresh my memory on Cluny Damascus as I seem to have forgotten the pattern welded tube type.

Cheers,

Raimey
rse