COINSPINNERProof Set1966

Representative series imageUs Special Mint SetReference art may not show this exact date or mint.

Us Special Mint Set

U.S. collector price guide

1966-S Us Special Mint Set (sms)

Name: 1966-S Us Special Mint Set (sms)
Brand: CoinSpinner
Availability: InStock

Guide value by grade$12.00

Limited1 priced grade

Collector value is shown by grade, but intrinsic metal value can dominate lower-grade outcomes.

Updated 2026-06-09published-guideHow the guide works →

Price by Grade

Grade	Quality	Est. Value
PR-67	Superb Gem Proof	$12

Estimates from published guides and recent sold data. Grade is everything. Verify before you buy.

What to do next

Check the gradeValue changes by condition. Compare the grade ladder before using the headline estimate.

Watch melt valueFor silver or gold issues, melt value can become the practical floor.

Verify before buyingUse methodology, source confidence, and recent comps before making purchase decisions.

Common Questions

What is the 1966-S Us Special Mint Set (sms) worth?

Current guide estimates on this page range from $12.00 to $12.00 depending on grade.

Coin value can change sharply by condition. Use the grade ladder and price-by-grade table before relying on any single headline estimate.

This page does not show a meaningful melt floor for this coin, but silver and gold issues can have metal value that affects lower-grade outcomes.

Survivor's LedgerNo. cs_us_proof-set_us-special-mint-set_1966_s_sms

60years survived since minting

Deeper history for the Us Special Mint Set series is still being researched. Know this one? Help us write it →

Guide record

Grade and metal context

Use the grade ladder, pricing confidence, and melt floor together before making a buying decision.

Know this coin better than we do?

Better price data, a variety we missed, or a mintage correction? Collectors make this guide accurate.