For your Craigslist consideration today here's a CORE crankshaft for the 218 cubic inch Plymouth and Dodge late flathead six for $150 cash FOB Pomeroy WA.
Forging number 952068 on the crank.
Expect it will need service from your machine shop; at least a cleaning and magnaflux, maybe a grind on the mains, and/or polish on all the journals.
Rear main seal flange/lip appears to be out of true; best to inspect it before you buy it.
Donor was a P25 Plymouth passenger vehicle engine with a block casting date of 1953. Donor looked to have been taken out of service for worn valves and valve seats, possibly low oil pressure (mains were worn but serviceable).
Clearing out the 23" flathead parts, so this crank can go on to a better home.