Nice finds and welcome aboard from GA! You may try electrolysis on the iron items you want to keep. I've recently started using it with great success. Here's a link to the process if you're unfamiliar with how to do it.
You're welcome DeepseekerADS! I've used it on some civil war and ghost town iron relics that cleaned up nicely! I usually run it 24hrs the remove, hose loose debris off and descale what will fall off easily with a ball pean hammer, then run it another day or two. The long pin in the cents was about twice that diameter encrusted in rust. It cleaned up pretty well after 4 days of electrolysis.Great video Walt! Thank you! I can do this