A good find, Carl. When was this magazine published? I couldn't find a date.
I was around there in early 2009, and remember anchoring off China Camp. The shoals stretch way out, so Grace Quan is sailing in very little water in the photo. There wasn't much to see of the old days, ashore.
I also remember looking at all the historic vessels at Hyde Street, and didn't find the Grace Quan then - and I have a sharp eye when it comes to spotting junks. She must have been elsewhere, which is a pity.
I think I'm seeing only one Hong Kong parrel from batten 4 to the yard, and running luff parrels to battens 1 and 2, and battens 3 and 4. I also see a chinese daggerboard and lifting rudder, which would be essential in the shallow waters of San Francisco bay.