Start with lemon juice, that typically brings the gold gilt to life. If it has crud encrusted on it, lemon juice may still work, but if it's really encrusted you may have to go to more agressive methods (like Naval Jelly). Don't clean it with a brush under water, that can leave them in bad shape.
Congratulations, welcome to the silver dollar club :goldtrophy:
I've been fortunate to dig three, one in a coin spill with 13 other old coins, one was pretty beat up from a ghost town dump, the other was super deep and also found with an EQX800 in an old long forgotten rail road depot in the...
Congrats locating the cellar hole and subsequent finds, the buttons are fantastic!!
How are you using LIDAR? It's something I've been VERY interested in. As technology evolves, I've been watching for a reasonably priced drone LIDAR mapping solution as these things tend to go down as...