How to Identify the 1913-S Barber Quarter

What This Coin Is

The 1913-S carries the lowest mintage of any circulation-strike Barber quarter, making it the key date of the entire series. It was struck at the San Francisco Mint in the final years of Charles E. Barber's design before the Standing Liberty quarter replaced it in 1916.

Obverse Design

The obverse shows Charles E. Barber's right-facing portrait of Liberty. She wears a Phrygian cap wrapped in a laurel wreath, with a headband inscribed "LIBERTY" running above her forehead. Thirteen stars circle the rim, six to the left and seven to the right, and the date sits at the bottom just above the rim.

Reverse Design

The reverse carries a heraldic eagle with wings spread, a striped shield on its breast, an olive branch in one talon and arrows in the other. "UNITED STATES OF AMERICA" arches around the top rim, and "QUARTER DOLLAR" curves along the bottom.

Size, Weight, Metal, and Edge

Like all Barber quarters, it is struck in 90% silver and 10% copper, weighs 6.25 grams, measures 24.3 mm across, and has a reeded edge. There is no copper-nickel version; any example that doesn't look silver-white on a fresh break or edge should be checked carefully.

Mint Mark Location

Barber quarter mint marks appear on the reverse, below the eagle, between the arrow feathers and the ribbon bow, just above the D and O of "DOLLAR". Philadelphia coins show no mint mark at all; look closely with a loupe, since a small "S" or "D" can be mistaken for a die mark or dirt if the coin is worn or dirty. On this issue, the "S" mint mark paired with the 1913 date is what separates an extremely scarce coin from an ordinary Philadelphia 1913 quarter.

Telling It Apart from Similar Coins

Because of its rarity, this is one of the most commonly counterfeited or altered Barber dates. Buyers should compare the mint mark's exact shape and placement to known genuine specimens, and check that the date's digit style and spacing match other confirmed 1913 Barber quarters rather than a re-cut or added numeral.

Judging Condition at a Glance

Wear shows first on the high points: the hair above Liberty's forehead and the leaves of the wreath on the obverse, and the eagle's breast feathers and the top of the wings on the reverse. A coin that still shows separated hair strands and a mostly complete "LIBERTY" on the headband is in the About Uncirculated to Mint State range; heavy wear that flattens the headband letters and smooths the eagle's breast points to a Good or Very Good grade.

Authenticity Red Flags

Because several San Francisco-minted Barber quarters carry small mintages and strong premiums, common Philadelphia coins are sometimes altered by adding a fake "S" to the reverse. Warning signs include a mint mark that looks flatter, shinier, or differently shaped than genuine examples, tool marks or a slightly raised halo around the letter, and a font style that doesn't match the coin's era. Comparing the mint mark's size, shape, and position against verified photos of the same date is the most reliable way to check by eye. Given the premium attached to this particular date, extra scrutiny of the mint mark under magnification, along with a check for a slightly different luster or color around the "S," is especially important.