It is the early W.H. Baker guns. I had put in my book a Baker 3 barrel with 16x16x 38-55 that a gentleman in California sent to me, the only number it had was 1 nothing else. I thought it was a serial number but Darly Halquist told me the early Baker guns were not serial numbered. It was a Grade 1 and probably one of the first 16 gauges built.