The only thing I can see as far as the frame goes that is 1926-27 is the rear axle. Everything else looks to be about 1921 to 1925. The rear cross member looks too short, I can't see enough of the front cross member but it does not look to have the additional gussets for the front fender irons. The spindles look to be the 25 and earlier style. But then he was going to build a 1923 rod so that fits with the chassis parts.