Mounting an early cannon

[Ed]

Sorry, got caught up.
Length o/a is 45". Bore ~1.25"

Iron

There is what appears to be remnants of paint on the entire length of it. The only illustrations that I have come across are in Max's book.

Thing is that if it is mounted in a carriage (as illustrated ) there is no play, the only way to have adjusted elevation would be to raise or lower the trail.