I have a like-new Horseman 6x7 roll film holder and a good-condition (perfectly functional, but pressure plate is missing some black) Singer/Graflex RH-10 (6x7 lever wind) holder, both for 4x5 Graflok cameras. I would like to trade for 6x9 roll film holders to fit 4x5 Graflok backs. Horseman holders are preferred, but I will consider Linhof ones as well (though I really do not think they are worth the extra money over the Horsemans, so I will not give them premium trade value). If you have 6x9 but prefer 6x7, please contact me, as I prefer the opposite.