The note refers to a king post on older models. Why--To what end? What did it look like? How was it attached? We know it anchored two parts: 57 and 63.
A bunch of hours later the answer was found on a You Tube video Sailing at Beaver Lake 2012, posted by jaybender. The sail number is 378 (an early boat), and clearly it has a hinged step that would make a portable hinge unnecessary.
Here's a closer look. Fuzzy, but definitely a hinge.
So now the bigger mystery --did Tanzer change the mast to make a simpler rig, a rig less costly to produce, or did it not work so swell? If it works, it would sure be a nice retrofit on #1306. Better pictures and more detail welcome.
Today's Cliche: No good deed goes unpunished, but it's likely to go unnoticed.
Next post --Trailer lights that actually work --most of the time.