Hollow brass tube with “N” engraved on one end, “S” on the other. I can unscrew the cap on the “S” end, but not the other. Found at an estate sale.
By A Mystery Man Writer
On other end marked hi-res stock photography and images - Alamy
2023 Marine Sale catalog by Eldred's Auction - Issuu
On other end marked hi-res stock photography and images - Alamy
Fine Sporting Arms Auction February 4, 2023 by Guyette & Deeter - Issuu
Zettlemoyer Auction Co., LLC. Auction Catalog - Rarities Abound at Winter Boutique Firearm Auction Online Auctions
National_NC173_NC183_NC183D
Tacky Tuesday Megathread : r/YouniquePresenterMS
TomahawkClamSandwich (u/TomahawkClamSandwich) - Reddit
Cowan's Auctions Auction Catalog - Important Historic Firearms & Early Militaria Online Auctions
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TomahawkClamSandwich (u/TomahawkClamSandwich) - Reddit
Fine Sporting Arms Auction September 11 & 12, 2023 by Guyette