Hello Ben. Thank you for posting another one of your repair/update videos for all to see. That is an ingenious but simple solution for adapting the ancient Marx "AUTOMATIC ONE WAY" coupler system to the more modern Marx Tab/Slot coupler systems. I will probably use your adapter system if I ever come across an ancient Marx set that has the "AUTOMATIC ONE WAY" couplers. I have been going to train shows locally for 3-4 years and I have yet come across a Marx set let alone a single Marx car with the elderly coupler system. You have acquired a very rare intact Marx set. I have come across a website that has a Marx Equipment identifier page. LINK SHOWN BELOW
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