Not much to say in this photo - aluminum collars have been cut,
drilled and mounted. Spacers used between collar and shoulder on
the original props were wooden cotton reels cut in half - as I was
totally out of 1960s wooden cotton reels I substituted circle-cut
 plywood, cut to same dimensions. Note dowel 'keys' atop this
section which mount thru corresponding holes in the neck section
for assembly.