Description of the Lawton-Barton Design
Externally, the shape of Lawton-Barton pieces was quite similar to the later Lawton pieces, but differences include:
Bite plate inlay circular
Reed cover open-ended
No lettering on the ligature screw thumb wheel
“Lawton-Barton” marked in italic script on top
Internally, there is a low baffle sloping down into the chamber which has a square shape with flat sidewalls and an arched throat stepping down into the bore.
Mouthpieces were marked on the end of the table with a circle inside which is the tip opening in thousandths of an inch and a letter (usually/always “M”).