Line-throwing guns occupy a niche intersection of maritime history and practical emergency equipment. For collectors and maritime restorers, an original naval line thrower that retains period markings and accessories can be both a conversation piece and a preserved tool of lifesaving technique.

ARMY & NAVY 45-70 LINE THROWER is a super rare Naval Co. 45-70 line throwing gun that comes with two boxes of 45-70 blanks. It does not have the canister for the line, and it’s old enough to still be marked Roslyn PA USA. Offered in the Single Shot category with model listed as Various, the asking price is $3000.99. Shop this product

Historical and functional context

Line throwing devices were standard issue on naval and merchant vessels for transferring lines during rescues, towing, or setting temporary moorings. The designation 45-70 here refers to the blank cartridges included with this piece — a powerful blank load that provided the necessary propulsion without a projectile. Blanks in 45-70 power levels are valued for long-range line deployment capability; the included two boxes of blanks add immediate operational demonstration potential (where legal and safe to use).

Condition, completeness, and collector considerations

Key details from the listing matter: the absence of the canister for the line means the gun is incomplete for practical line deployment and will factor into restoration cost and value. The Roslyn PA USA marking is a strong provenance cue and signals genuine age — an important attribute for collectors. Being listed under Single Shot and model Various suggests a less-common configuration, which increases rarity but also requires careful inspection for serviceability and safety.

Tactical collector’s assessment

For a tactical-minded collector or maritime museum, this piece is notable for brand identification (Army & Navy), its original markings, and the included blanks. Expect to negotiate on price given the missing canister and the specialized restoration that may be required. Verify legal requirements for possession and transport of historic blank-firing equipment in your jurisdiction before purchase. View product details and pricing

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