Valentine kept safe from Peter by leaving Earth. She and Ender went to a colony planet called Shakespeare.
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.
probably but to be safe have it checked out by a gunsmith..............
Lender's royal service # 117709
Ruth Enders's birth name is Ruth Beatrice Enders.
Georgiana Enders's birth name is Georgiana Rose Enders.
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Trade name. Made by Crescent. 50-100 USD value.
Have it examined by a competent gunsmith
Frank Enders died in 1921.