This is an old family heirloom of unknown origin. It is solid (no joint) and measures just under 37 mm on the smooth diameter. The bottom hole is blind and measures 12 mm diameter and about 20 mm deep. The length is 120 mm.
Stampings on the brass ring are "27 3 ?4 15 -A 37"
The bottom is stamped "15"
Any information you can provide would be greatly appreciated.