A bronze military challenge coin featuring two submarines and wavy blue bathymetry contours. Text reads "NAVO SUBMARNE PRODUCTS" and "SUBSIDIUM SUBMARINUM".
Mock up 2" military challenge coin with "NAVO Submarine Products" arched along top, image of two underwater US submarines (SSN and SSBN), bathymetry contours with various depth changes in center and "Subsidium Submarinum" along the bottom See more