My wife went out to tend to the flowers in the tiny beds outside our apartment, found a coin-shaped thing which turned out to be a medal from WWI! I grabbed my metal detector and the earth just kept giving up more treasures!

We started the cleaning with a dry soft bristle brush tk knock off most of the mud and dirt, then bathed them in a citric acid solution (2 tsp citric acid crystals per 1 cup water). gave everything a final scrub then a buff with Flitz, and the details revealsd themselves.

Pretty fun adventure right outside our door!
Whoa that's crazy! Good find.
It made for a fun day! We've gone an metal detecting trips in the past and found little more than old Pepsi cans from the 1970's, but this was such an odd spot, we couldn't believe our luck. We think someone who lived in the building previously buried them in a box/bag that decayed, then one got churned to the surface by the roots of the shrub they were under.
@tinsmith wonder why someone buried them. It's probably an interesting story.