I am no appraiser, but I have followed these locomotives and their prices. They range from $2500-5500 for just the locomotive. This loco being a 1937 model has seen better days. The zinc pest has pretty much made this a shelf piece. The cars look to be in very nice condition. Paint looks good and I don't see much warping of their frames. The fact that the boxes are still alive and well is just amazing. So long story short I would personally say this set is worth $7000-9000. Again I am no appraiser, just using my knowledge of the market to make a judgement call. Amazing piece overall, but not a runner. Shelf piece. 👍👍