For 60's and 70's TOFC fans in HO, Trainworx which is mainly an N-scale company) has just released two types of drop frame trailers in HO, corrugated sides and smooth sides in ATSF, UP, N&W, SCL/LN, ICG, GN and UP. Gorgeous! I ordered 5 from MBK before they sold out (in less than 24 hours) but other vendors have yet to get them in. Those will mix nicely with other HO trailers such as the Athearn 40' Fruehauf's and 40' Exterior Post trailers.
http://www.train-worx.com/
http://www.train-worx.com/15-11-HO-dropframe-trailers.pdf
http://www.train-worx.com/
http://www.train-worx.com/15-11-HO-dropframe-trailers.pdf
