My father has been collecting trains, HO scale, for the last 50 years or so. There are over 200 engines, by his estimate and more than a thousand cars. (is that the correct term)? I know nothing about these. He has Parkinsons and has not been able to work on his set for over 10 years. He has asked me to look into getting everything appraised and liquidating it. There are buildings and billboards from as early as 1960 and as new as the 1990's. If anyone has any thoughts or is interested, please contact me. Thanks!