I found a set for my Enders Special Service a.k.a. crescent on eBay of all places. It took some time and alot of questions, pictures and measurements but was worth the wait. There are many barrel sets that will fit with a little tinkering.
try gunstock inc. they have them
Crescent.
What is the Value of my Crescent Fireams, 12 Gauge, Double Barrel, Curly Hammers......no serial number that I can find
70-100 years, 50-200 USD
Crescent Fire Arms Co. and Crescent-Davis Arms Corp. They made the gun with only Smithsonian stamped on it in both single & double barrel and in several gauges
You can get some double barrel parts from GUNPARTS. com
the knickerbocker was made by crescent arms Look under Crescent Tryon firearms
404019
try e-gunparts.com
200.00
Try gunstocksinc.com
try gunstocks inc