I put some thin shims underneath the metal to keep from damaging the brick, and give it a tighter fit where it would not roll around.
Done for the day.
Upon leaving and rounding the corner I decided to take a picture of the front of the building because I am interested in casting from the eagles on the facade, among other things at least cataloguing the stonework. Efflourescence is apparent underneath the roof . At the proposal a couple of years ago of painting the steel roof, I am hoping that whomever does the painting - and it might be me - they will also be able to wash the efflourescence off, which is probably being caused by a slight leak, or water sitting too long somewhere.
Here it is again high upon the south west wall.