| Scans of extracts from the Combs patent of 1931. It is interesting that Figure 1 does not correspond exactly to any of models 21, 70 or 90 that used this general cabinet design (along with two battery models). The closest is 21, based on knob configuration, though the escutcheon is different. This model was the first to adopt the style. There is some evidence that a model 50 was produced using this cabinet (radioattic archives) though this may not be authentic. The knobs certainly do not look like Philco originals but more like the knobs from a GE/RCA set. To its credit, the spacing between the lower knobs, consistent with the model 50, is wider than for any of the other models and there is no evidence of the front panel having been altered (assuming the front panel is not a reproduction) |