• 1966 Washington Quarters, Special Mint Set Values

Greysheet & Red Book® PRICE GUIDE

coin-icon-tr
Values / U.S. Coins / Quarters / Washington Quarters, Special Mint Set (1964–1967) / 1966 Washington Quarters, Special Mint Set

The Greysheet Catalog (GSID) of the Washington Quarters, Special Mint Set (1964–1967) series of Quarters in the U.S. Coins contains 3 distinct entries with CPG® values between $1.00 and $4,000.00. Washington quarters struck with special finishes for collectors and generally not intended for circulation. The 1964

The Greysheet Catalog (GSID) of the Washington Quarters, Special Mint Set (1964–1967) series of Quarters in the U.S. Coins contains 3 distinct entries with CPG® values between $1.00 and $4,000.00.

Washington quarters struck with special finishes for collectors and generally not intended for circulation. The 1964 Special Mint Set (SMS) issue was experimental and extremely rare.

See More See Less
1966 25c Special Mint Set SMS
Value Range: $1.00 - $35.00
$1.00 - $35.00
1966 25c Special Mint Set SMS CAM
Value Range: $15.00 - $600
$15.00 - $600
1966 25c Special Mint Set SMS DCAM
Value Range: $400 - $4,000
$400 - $4,000

Available on Greysheet Marketplace

View All
1958 25c MS

Auction Ends: 4/20/2026

1926-S 25c MS FH

Auction Ends: 4/29/2026

1872 25c PR CAM

Auction Ends: 5/2/2026

1902 25c PR CAM

Auction Ends: 5/1/2026

Dealer Directory

View All Dealers

Greysheet News

View All News
Red Book Podcast with John Feigenbaum and Jeff Garrett [Video]
Red Book Podcast with John Feigenbaum and Jeff Garrett [Video]
4/17/2026

You don't want to miss this conversation about Mega Red X & the 2027 Red Book

Stack's Bowers Galleries Shatters Records in Spring 2026 Showcase Auction
Stack's Bowers Galleries Shatters Records in Spring 2026 Showcase Auction
4/16/2026

Auction records were smashed during an incredible week of auctions hosted March 9-17, 2026 by preeminent rare coin auction firm, Stack's Bowers Galleries.

Eagles Soar in Latest Offering of James A. Stack Collection
Eagles Soar in Latest Offering of James A. Stack Collection
4/13/2026

A wide range of U.S. and pioneer gold coins from 1798 to 1933 proved to be highlights of the February 3 Stack's Bowers sale of the second part of the James A. Stack Sr. Collection.

Map icon

DAVID LAWRENCE RARE COINS