M_Boats: New Old M-17

Endelig is coming along. I am now working on the lighting. Cabin and fore and aft running lights are now working. Did old M-17's have a masthead anchor light? There is a switch on the panel which says "Mast" and a dead end wire at the aft edge of the forward hatch but I see no evidence of an opening or wire stub going to the mast or a place for mounting on the masthead. The previous owner told me that she had knocked the anchor light off when she was stepping the mast, but could not find the fixture. I have really looked the mast over and can't find a place where it might have been attached. Can you help me, again? Thanks, Bill Sylvester M-17 #279 Endelig