Richard Horne (mentioned in the previous post) has found a couple more photos of Camden Lock. He writes: "I came across this photo of Camden Lock in earlier days – I would think 1970s or 80s. If you stood on the spot this picture is taken from and did a ninety degree turn to the right you would be facing Dave Trace’s door; I think this is about as close as we would get to finding an actual picture of Dave’s studio."
"if you head down Commercial Place to where you see a single story building with a sliding door and turn left you almost immediately arrive outside Dave’s studio (on your right) where this photo was taken. I hope you can do the mental gymnastics to make sense of this."