This mortar has a straight body with a flared mouth and base. There is a raised horizontal band at the bottom of the waist which is marked "ALLEX ENNDORFFER GOS MCIH 1539 IAR". bottom of the waist. One detailed scaled fish handle at the waist. The pestle has rounded ends with three horizontal rings in its center.
Urdang give this mortar a German attribution. He goes on to say "the mortar was cast by Allex Enndorffer who was Imperial Master of Cannon under Maximilian and Charles V". Wittop Koning on the other hand believed this mortar to be from Innsbruck, Austria.
Testing with a X-Ray Fluorescence Spectometer reveals the metal content to have a hign zinc content of 14% and relatively low lead levels of 2%. All measurements are approximate.