What are the differences in materials used?
There are none. It has the same basswood body standard. It is all the same hardware. The binding is different. A natural wood “binding” comes standard and there is an upcharge for a cream or black tape binding. They really don’t want to do these so the price is kind of high. The Wolfgang archtop had a unique poured binding, which they are not doing anymore as they said the process resulted in too many wrecked tops. Stainless frets are available at no extra charge.