Well, at least a mystery to me. In all my years as a postwar Lionel baby-boomer I never knew until yesterday that these #90 controllers- or at least some of them- had what appears to be a stainless steel or chrome plated "clip" that fit onto the flat recess between the button and binding posts. The "clip" or "bracket" has a window in it, under which a piece of paper was held in place that could be used to mark what that particular #90 was controlling. It makes for a very nice looking set up. Were these "clips" included at one time with the #90 controllers or were they a separate sale item? Or are the ones I saw on that auction site after market creations by someone other than Lionel? I cannot find a part # or any reference to these "clips" and would like to know more of their history and where I might be able to find some- either original or repro- aside from the auction site and $20 or more. Thanks for any info
Mack