Only one of the dragon's wings have a "grill bars":
Nice find! Certainly helps with the Aquatic Park location and speaker tower theory! Good luck finding a better match for the curve in those "grill bars".
Take a look at the left arm of the figure with the camera around his neck on page 64 of "The West Ghost" and tell me what that reminds you of? There is no good reason to draw the arm in such an odd and unnatural pose other than to offer a clue to the puzzle.
As mentioned in the other thread, the pearl has a round shadow next to it in Image 1. The speaker towers cast the needed round shadow.
The key line in the Boston verse was "Feel at home". I see no reason why the key line in the San Francisco verse can't be "Sounds from the sky".
If his arm had I-beam design then we'd be set! One interesting characteristic of the speaker towers is they are facing directly at eachother. I think MrBackstop suggested that the towers may be at the center of the image where the "strawberry" is at. I suggest the strawberry is actually the pine cone finials present next to the western tower. Also a small open field next to it.
You know what else is awesome? I figured out "Near ace is high"! The Maritime Park Bocce Ball Court is right next to the West Speaker Tower. The highest scoring play in bocce is known as an ace!
So cool. Originally I thought maybe the clock tower that looks like A (Ace designation on playing cards) and it is up high but bocce ace is clever. Welcome back Sluggo. Flush that tryptophan out already! We need your wisdom here.
Potential good news: I received an email from Linda S. today. She's a member of wiki and Facebook seeker in SF. We've been collaborating on the cove solution. She wrote that she was reluctantly allowed to probe the area of interest by a ranger but not dig. She tells me that she definitely located the cask and pleaded to be allowed to dig it out. She was not able to do so, however she was given the contact info of the person in charge. Hopefully she can charm him to let her dig to reduce the illegal digging and probing activity.
hey.....triagulation markers in our zone. consider the one at the arrow.......choice, there is the arched shape, and a giant pole, near that marker, reference the description. still shy a hexagon.
I've been looking at that arch too, that is where the railroad went through a tunnel under Fort Mason I believe.
There is a pole there too, but I was also wondering about the huge one that used to stand behind the fire department pumping station...it would've also qualified as a "giant pole".
Also had the thought that "Running north, but first across" could have been the Belt Railroad that ran north through that arch, but first across Aquatic Park. While the railroad is now long gone, it was in operation in the early 1980s.
As for the hexagon, have you looked into the building directly south of the Black Point Pier along the shoreline? Didn't someone mention that it was an old spotlight that made them think of the beams of light in the "West Ghost" image? I can't tell how many sides it has, but appears to be 5-6? It's an odd shaped building that's in the general vicinity...might warrant a look?
There could be many "object of Twain's attention", but one potential object could be S.F. Fire Dept. Pumping Station #2. Why? Well because the real Tom Sawyer was a San Francisco fireman and friend of Mark Twain. This would also make the pole that used to be at the pumping station, the "giant pole". Another possibility to ponder...