Challenge Coin Check

Browse Marketplace Tags Leaderboard 🏆 Contest GWO Collection

#maritime rescue

3 coins

United States Coast Guard

OPP SAR Stations Project

OPP SAR Stations Project

Canadian Coast Guard

Bay Class SAR Lifeboat

Bay Class SAR Lifeboat

Canadian Coast Guard

Challenge Coin Check

Powered by Gray Water Ops

The Gray Water Ops Smart Coin® is an exclusive product protected by utility patent US 9,027,841 B2. If you find another company offering NFC embedded custom coins please let us know!

iOS App Android App

Legal

Privacy Policy
graywaterops.com

Return & Refund Policy

We will replace any damaged products. All sales are final. Due to the custom nature of our products, refunds are not accepted. If we ship a product in error, contact us and we will correct it and get the right product out to you.

Payments accepted

American Express, Mastercard, Visa, Discover. Businesses and local, state, or federal government agencies can pay via check or ACH.

© 2026 Gray Water Ops. All rights reserved.

Smart Coin® · U.S. Patent 9,027,841 B2 · in force through 2033