Sanborn Map Help
Finally found a Sanborn map for my house, dated 1921-22...doesn't appear to tell me much that I didn't know, but if anyone has more skill with them than me, I'd appreciate your input! I looked at the key, but I can only figure out 2-storey, wood-frame, no mention of roofing type or shows my two chimneys which are brick covered by stucco...of course, they are both internal.
I note the garage, but what does the black circle in it mean, or the white ones in the house? And what the heck is that little building at the property line south of the garage?! Did a bit of digging for a small shallow pond in that area, and came up with lots of broken slate, a bit of china, and not much else.