I put the springs on my truck to the test today ! Its amazing what you can get away with when you get permission from the land owner. All this was from the Glen Burn Mine property in Shamokin PA. Once I fire up the presure washer, I will be able to see what is here. Most of the 10" discs are LOCKE 1944. The 6" bells are a mix of LOCKE, PINCO, WESTINGHOUSE, OB, PYREX, THOMAS, AND LAPP. I now wish I had grabbed more hardware...