This one had a VDI OF 53 (which is usually a pulltab VDI) with a depth of 10+ before I removed the first scoop of dirt. The AT PRO ( the beast) gets good dept in fresh water, my primary hunting. My finds today 13 quarters,(seems to be a lucky number for me) 14 nickles,11dimes, 44 pennies ,a baby photo on an aluminum disc and a foriegn that reads Calos I Rey D Espana on the front and Cien Pesetas on the back 1983. (school me someone one this coin).