U.S. PATENT 1343253/20 underlined 10, so this pipe is from 1930
Canadian shape 524 and "A" denoting Bruyere finish. The rim has been slightly carved out with a pocket knife at the 12 o'clock position. Some rim darkening. The chamber is very clean and whoever smoked this in the past didn't like to smoke to the bottom, as I can still see bare wood. The stem is in excellent shape with no tooth marks.
Length - 6 1/2 inches
Width - 1 1/4 inch
Height - 1 7/8 inches
Chamber - 7/8
Weight - 1.8 oz