Thanks Jack, I have no winch on the mast (but that explains why some do) and the u bolt fittings that correspond to the reef points are 4 in number and located on both sides of the boom. Also the "rams horns" cleat is small and on the underside of the boom. There are 2 lines running thru the boom, one is smaller gage than the other (?). There are deck mounted blocks at the base of the mast that I presume could be used for the cunningham. Could they have been intended to run reefing lines into the cockpit? Mast and spar are Kenyon and I think the boom is a "D". I'll see if I can take some pix and post them.