Submarine Research Medical Research Laboratory Challenge Coin

A beautiful 1.5 inch brass coin based on the Naval Submarine Medical Research Laboratory patch in Groton CT. These coins are designed and only available from me.

Would make an excellent addition to your collection or for your favorite sailor!

OPTIONAL: Our Air-Tite acrylic cases provide the ultimate long-term protection for your coin. They are made of crystal clear, hard Acrylic and will never yellow over time; the foam rings are made of Volara and both are free of PVC that could damage your coin.