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1911 Proof

Twenty Cent Pieces & Quarter Dollars · Barber Quarters (Liberty Head) · 1892–1916
Regular Proof
Weight6.25 g
Diameter24.3 mm
MintPhiladelphia
StrikeProof
Mintage 3,720,543
EdgeReeded
Alignment↑↓ Coin
Composition90% Silver, 10% Copper
DesignerCharles E. Barber
Collector's Key IDCK-2700

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About this coinHistory

The 1911 proof Barber quarter saw 543 pieces struck for collectors at Philadelphia, holding the late-decade pattern of low five-hundred production. Subscription numbers had stabilized in a narrow band by this point, with the same core group of advanced collectors and a small commercial dealer network ordering complete silver sets each year through the Mint's mail program. Proof production followed the established procedure: planchets were chemically cleaned and polished, dies were buffed to mirror finish and frequently re-polished mid-run, and each blank was hand-fed into the press for a slow-cycle double strike at elevated tonnage. The doubled impact pressed the metal completely into the die's recesses, yielding the squared rims, sharp dentils, and fully struck centrils that visually separate proof from business issue.

Authentication for the 1911 proof relies on the same diagnostic set used across the late Barber proof run. Mirrored, watery fields meeting squared rims at the perimeter form the first checkpoint; if the rim shows any rounding under low magnification, the coin is not a proof regardless of how reflective the field appears. Under angled light, the field should reflect with smooth, undisturbed depth rather than the broken cartwheel luster of even the finest prooflike business strike. The Mint had been producing all-brilliant proofs since 1902, so by 1911 the contrast cameo effect was a near-absent feature on new strikings; Cameo and Deep Cameo designations remain scarce premium subsets on the population reports and carry meaningful auction premiums when they survive. A 10x loupe should reveal parallel die-polish lines tracking across the protected fields in straight, deliberate sweeps, a positive proof diagnostic difficult to fake. Distinguishing a true proof from a deeply prooflike business strike requires verifying the squared rim, full strike on every star and dentil, and the absence of any bag-mark texture. Specifications match the regular issue at 6.25 grams, 24.3 millimeters, 90 percent silver and 10 percent copper, with a reeded edge.

Most surviving 1911 proofs grade Proof-63 to Proof-65, with parallel hairlines from period cleaning the dominant grade limiter. Toned originals with intact mirrors hold premium value. For broader background on the Mint's late proof program and the closing years of the Barber design, see the Barber Quarter series history.

Price guideReference

Reference data only — not an appraisal.

GradeDescriptionLowHigh
PR-63 Proof (PR)
Frequently Asked QuestionsFAQ
How many 1911 Proof Barber Quarters (Liberty Head) were minted?
3,720,543 were struck.
What is a 1911 Proof Barber Quarter (Liberty Head) made of?
90% Silver, 10% Copper, weighing 6.25 g.
What is the melt value of a 1911 Proof Barber Quarter (Liberty Head)?
Its melt value is its metal content multiplied by the current spot price. See our melt calculator on the metals pages for a live figure.
Is the 1911 Proof Barber Quarter (Liberty Head) a key date?
It's a more common date overall, though scarcer die varieties may carry a premium — see the varieties list.