Ah, the Handlan-Buck radial lens classification lights. These are tough buggers to find, now and then some do surface, but usually a single, not a pair and they are EXPENSIVE! Now Adalake states that they will make lamps for you and since they have the sheet metal tooling, they may be able to fabricate some lamps--but I'am sure you would have to have a big order to get the price down and I'am sure a lot of NG railfans would buy them as well as the D & S NGRR--and yes, Coronado Scale Models in Phoenix does make the Epoxy repro lenses. I would be glad to help you--I have Specs from the Handlan-Buck catalog. Bear this in mind, however, most of the K-36s used a class lamp that had two round lenses, not the radius style lenses--sooo if you are going to stay true to the original you will need some of the round lense class lamps. There were some K-36s and K-37s that did use the Radius style lamps. Count on me for any help--just get in touch with me and we can talk. Also bear in mind that as far as I know, the D&RG(W) and the L & N were the only U.S. RRs that used these lenses (and Earl has one lamp from each of these lines).