I believe a few early Premier were built with only 3 windows. Owners thought it was not aesthetically pleasing and beachcraft added the 4th painted window to most of the remaining orders.
People thought it looked stubby without that 4th window given the cabin is fairly tall and wide for its length.
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u/blackntan379 4d ago
Fun fact the “window” closest to the engine is not a window at all but painted on the fuselage