Gibson 1935-'36 E(H)-150 Amp 1st Gen/2nd Series
This E(H)-150 model is a highly sought after, rarely seen model that is confused by the actual 1st generation E(H)-150. Please see
The main difference in appearance the 1st gen. amp has a large house-fuse in the lower left corner and a rather large power transformer. Please see photo below. Other than that, the 1st gen. first and 2nd series amps are very similar.