21.5cm (8.5in) x 12cm (4.7in) x 14cm (5.5in)
Patinated bronze. Cylindrical barrel cast with integral lifting handles, lateral trunion, and vent to the chamber, set on a hardwood base with tampion.
Desk model of a siege mortar of the type introduced Baron Menno van Coehoorn (1641-1704) to overcome the difficulties of reducing fortifications impervious to horizontal artillery fire.