After combing the forum archives I'm more confused than when I started.
Pertaining to a January 1911 built T/OR, should the steering column bolt hole pattern where it mounts to the firewall be symmetrical or should the lower-left hole be offset such that it shares the top hole in the firewall-to-frame bracket?
Definitely symmetrical. The offset hole in the steering column base began in 1912 when Ford lowered the column at the dash but kept the same firewall to frame brackets so they moved the hole in the steering column base to compensate for the column movement downward. The T/OR was at least a full year earlier in January 1911 so that column with the offset hole was not invented yet by Jan of 1911.
Excellent, thanks very much for the definitive answer.