Just for reference, here's a 736 and a 2046. This is a later Berk with the plastic sided trail truck, headlight wedge, dull plated rods, and heat stamped number. The 2046 has the simplified bell casting, no decorative whistle, different position slot for the E-unit lever, and the one piece boiler front. Some of the earlier Berks also had the 3 pane windows like this 2046.
Jim
