This is a Hern full-scale Coehorn mortar I put together a number of years ago, 2 1/4" bore. The cart has no historical basis but since the other three crewmen were two dogs and a cat I needed a way to move it around. Dixie sells these castings with the vent drilled (oversize unfortunately) but this tube and its bed ironwork came from Hern and a puzzled machinist here drilled the vent to correctly accept friction primers. The casting was finished slightly by hand (no grinder) and browned; the bed is ash, colored by linseed oil and paste wax and time. A tin can mould produces plaster-of-Paris slugs that are propelled by 1 oz. of 1F and can occasionally be seen in flight. Sometimes they can be reused; a neighboring settler who was picking rocks in his adjacent field returned one to me, unsmiling, "I bet this belongs to you."