To add a little more to this thread and hopefully shed some light on why the "when was it produced" question is so important to figuring out what Daly model you have and where it stacked-up in the line-up, I've added details of the hammerless SXSs offered by SD&G just 16 years apart. The first is a summary of the Daly models offered in 1892, and the second is a summary of the Dalys offered in 1908.

(Note this is a summary of Daly hammerless SXSs only. Daly drilling and SBTs, however, followed similar methodology. Apologies for the less-than-easy-to-read format below.)

SD&G Catalog (1892) - 302 Broadway, NY
Model Retail Price Details
120 $110 A&D action, fine damascus, extension rib, auto safety, hand matted rib, 10, 12, 16, 20 bore
120 FW $125 Same as 120, except 5.5- 6 lbs, 12 gauge "featherweight"
150 $175 Same as 120 with ejectors
200 $175 "Diamond Quality", Bernard, Turkish, or Chine damascus, extensively engraved, turkish walnut
250 $275 "Diamond Quality", Same as 200 with ejectors


SD&G Catalog (1908) - 302 & 304 Broadway, NY
Model Retail Price Details
118 $125 Krupp fluid steel barrels, dolls head ext., fine line engraving, 12, 16, 20, 24, 28 gauge
135 $140 12, 16, 20 gauge $150 - 10 gauge, $200 - 8 gauge Same as 118 w/ cross bolt, 8, 10, 12, 16, 20 gauge
185 $185 12, 16, 20 gauge $200 - 10 gauge Krupp barrels, ejectors, sideclips, cross bolt, additional engraving, 10, 12, 16, 20 gauge
225 $225 Diamond Quality, Krupp Special or Witten exclesior steel barrels, extractors, extensive engraving, 12 gauge only, 7 - 8 lbs
275 $275 Diamond Quality, 12, 16, 20 gauge $300 - 10 gauge Same as 225 w/ ejectors
325 $325 Diamond Quality, Krupp Special or Witten Excelsior steel barrels, elaborate engraving w/ gold, ejectors, 12, 16, or 20 gauge,
375 $375 Diamond Quality, same as 325 w/ heavier relief engraving, 12, 16, or 20 gauge
500 $500 Regent Diamond Quality, Krupp or Witten barrels, all aspects to order, gold crown in action engraving


You can see the actual model numbers are completely different between the two catalogs. You can also see in the later catalog how many diamond quality models there are (as well as a regent diamond quality gun.)