Cleaning these up now however came out of a pond
Most exciting was a 1947 nickel
Old fishing lures
a piece of a small outboard propeller
and a bar of some type of metal or ingot
I saw your ingot/ bar thing and it might be a zinc anode for a boat.I am going to suggest this on your what is it post and maybe someone can search that out, to prove or disprove that because I am not sure.