I've had the Kaywoodie Shape 8783B on my wish list and recently found this "Drinkless grade pipe. The stinger and stamping make it easy to date the pipe to 1935 to 1938. The pipe only needed a mild restoration but the plugged stem took a while to clear and had me worried for a short period. Full details are here:
http://rebornpipes.com/2014/11/05/kaywoodie-8783b-drinkless-1935-1938/
Before
And After
http://rebornpipes.com/2014/11/05/kaywoodie-8783b-drinkless-1935-1938/
Before
And After