Jim, thats what I thought too, but if you look closely at the top pic, you can see it's supporting a piece of rail tube that comes up and appears to curve and connect to the main railing about 2/3 the way up. In the second picture at about where the 2 railings would meet, there looks to be the head of a thru-bolt. If it IS a rail support, it's in a weird place, and doesn't really seem necessary...?
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. . . . . . . 1988 Skipperliner Custom 53x14 . . . . . . . . . .2007 Bayliner 175BR . . . .