A képen a múzeumi és egy saját gyűjteményi darab. sajna magyar leírást nem találtam, így be kel érni ezzel!:
TRENCH MORTAR (BETTICA) AND PROJECTILE: This was a small compact trench weapon with a range of about 200-250 meters depending on the weight of the missile. The projectile was fitted over a tube whose elevation could be adjusted to fire at different angles and was fired by a lighting the fuse with a lit cigar or punk. The lit fuse took 10 seconds to detonate the missile. Shown is one of the projectiles which came in several lengths and weights: the diameters varying from 38 to 60 cm; weights from 2.5kg. (5.5 lbs.) to 4.3 kg. (9 lbs) .

Angel