Described as a German AT training mine : https://www.dandbmilitaria.com/german-anti-tank-training-mine-40-ul-3
Is it correct and what is the designation ?

Is it correct and what is the designation ?

Join over 14,000 collectors of inert military ordnance. Get expert identification help for shells, fuzes, grenades, and more — plus access our classifieds marketplace and decades of archived knowledge. Free to register, takes seconds.