You guys have great eyes...
I've looked at a bunch of 1914 & 1915 Studebaker cars and it looks like different models have a few differences. These differences seem to correspond to the model, not necessarily the 1914 or 1915 model year. The most obvious are the rear door size, hood length, hood ornament. I've seen a few of each year with high and low headlights, but the majority of factory images seem to have low for '14 and high for '15. Did automakers back then stick to model year changes, or did they change over these kind of things during production runs?
I haven't looked at windshield differences... neat stuff!