Not very well up on different windlass's but yes I bought it but cannot remember where possibly at a boat rally somewhere in the midlands between 1973 and 1979 it weights 1.2 kilo and is the same internal dimensions with the same taper as another one I have which is steel and marked 6-67-1 on one side and JHSG1 on the other this is a double headed windlass bought about the same time. The only other place the brass one could have been bought was a canal chandlers in the middle of Birmingham cannot remember the name as getting on for 40/50 years ago now and the old grey cells are getting old. The brass one is approx. 7mm thickness across the head whereas the steel one is about 3.5 mm so the brass one is twice a thick as the steel one. The steel one weighs 916 gms so considerably lighter