Beaker brush. Also cylinder brush. Brush part 6 inches long, 3 inch diameter tapering back to 2-3/8 inch. Total length 16 inches.
Made of black hog bristle twisted into galvanized wire. Double tufted on end.
Brush mounted onto hardwood handle with a 1/2 inch diameter.
Forensics Lab Supply Number 3070160.
Formerly Grau-Hall Corporation dba Grau-Hall Scientific.