The Ruby .25 ACP represents a slice of early 20th-century firearms manufacturing: compact, mechanically straightforward, and historically significant. Collectors and tactical historians value examples that show original markings and honest wear from service life, and this specimen fits that description.

RUBY The Ruby pistol in this listing is a Spanish-made semi-automatic produced during World War I era contracts and is an unusual .25 Auto example—most Rubys are .32 caliber. Shop this product

Design and historical context

This Ruby-style .25 ACP pistol traces its production back to the 1914–1918 period when Gabilondo y Urresti supplied thousands of compact pistols for wartime needs. The slide on this example is marked “Manufactured in Spain by “RUBY” Arms Co. Patent 70724-cal 6.35″ with the reverse side marked “Tested Cal 25″—clear evidence of period factory stamping. The pistol carries additional markings: a PV with an emblem above it and an F/S marking at the safety, which help verify origin and original parts.

Manufacture details and markings

These markings are more than decorative: they inform collectors and buyers about inspection, testing, and safety features. The presence of a functioning F/S safety and the “Tested Cal 25” stamp confirm this gun was chambered and proofed for the .25 ACP (6.35x16mmSR) cartridge.

Caliber, performance, and practical considerations

The .25 ACP is a semi-rimmed, straight-walled centerfire cartridge designed for very compact pistols. Benefits include very low recoil, easy concealment in pocket or small holster, and reliable cycling in short-barrel blowback designs like the Ruby. Limitations are well known: terminal performance is limited and effective defensive use is restricted to very close ranges. Collectors often prize .25 examples because most Rubys were produced in .32, making this caliber variation noteworthy.

Price for this specific firearm is listed at $649.99, reflecting its condition and the unusual chambering. View product details and pricing here.

Condition notes and buying guidance

Condition is a key factor for vintage pistols. This piece is described as very good overall with original grips (note a chip in the lower right grip) and a few scratches, plus an “R” scratched into the front. Those honest signs of service add provenance and should be evaluated against high-resolution photos—these images are the best statement of condition for the firearm.

For those seeking a compact, historically rooted semi-auto that stands out for its .25 ACP chambering and clear Spanish factory markings, this RUBY offers both collectible interest and pocketable form. Check current availability and purchase options on the product page: Check current availability.

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