On the bottom metal, it looks like a 1909 reworked by Tom. The units Echols had made were for short magnums ( 338 etc ). The internal dimensions of a 1909 box are perfect for a 270. The original box is a little short so Tom extended the box in the front ever so slightly. Burgess made a new floorplate as well which this rifle appears to have.
My vote: Thos M Burgess.


“Perfection is achieved not when there is nothing more to add, but when there is nothing left to take away”.
Antoine de Saint-Exupery. Posted by Brad.