Made by Hopkins & Allen, 1914-15 for Shapleigh Hardware. A variation of H&A model 722. 2 versions--straight stock/pistol grip stock. Not listed in any value guide, so value depends on condition and what a person is willing to pay. As a Boy's Rifle collector what I'd pay if I needed one for my collection is about:
Poor $100, Fair $200, Good $400, VG $700, Ex $1000, NIB $1500+. Pete
Depending on condition, $50-$125.
25-80 USD. No published sn data
A brand name used in the late 1890's or so. Proabably made by H. D. Folson or Fulton.
No way to answer without a detailed description to include the serial number
Enders Special Service & Enders Royal Service along with Enders Oakleaf were made by Crescent Fire Arms Co. for Shapleigh Hardware Co. of St Louis, MO in the early 1900's. It is not a rare gun nor expensive. Perhaps $200 if in good condition.
Some Enders Royal Service shotguns are Crescent Model 60's marked with Shapleigh Hardware's trade name, but some were made by other manufacturers.
Enders Royal Service shotguns were distributed by HD Folsom to the hardware trade from c.1890-1920. They were imported from Belgium (will have proofmarks) and made domestically by at least two different manufacturers.
Lender's royal service # 117709
Before 1930. sales@countrygunsmith.net
Possibly Enders Royal Service? Blue, Hound, Whistler are a few others
The consoles themselves are manufactured in China.
Have it examined by a competent gunsmith