I dunno, had it wrong though (guessed).
AC tower
NYC 29%
C&O 15%
PRR 8%
Erie 47%
These are the 4 railroads that crossed here.
There was a tower at the end of my road where the B&O crossed the Erie. It was 78% owned by Erie and 22% B&O. For Erie it was "P" tower, B&O called it "RT".