Beautiful old signal Cannon. Cannon is solid brass, carriages, wood wagon wheels are brass trimmed. Someone over the years tried to polish this Cannon and there is quite a bit of residual polishing compound on the Cannon should be easy to remove. Overall weight is over 14 pounds. We have fired this Cannon a couple times, working Jumbo is stamped on the top of the barrel in three locations. We cannot find any other makers marks. We have not taken the Cannon off of the carriage, the old brass screws are in pretty rounded shape and we did not want to ruin them. So we are unsure if there are any markings on the underside of the Cannon.