Yes, this is all original. Yes the magnets are functional. Yes it has some minor issues: See pics. Not suitable for use at reenactments (far to rare and the phenolic is delicate due to age), more of a display item.
Adhesive hollow charge was primarily used by Wehrmacht. Around its base were three metallic magnets, each provided with a pair of pole pieces that were configured to act as stand-off feet with a strong magnetic field across their gap. This allowed the infantryman using the device to attach it magnetically onto the steel enemy tank, no matter the angle of the surface on which it was placed, before arming it by pulling the igniter at the rear of the mine.Because the device blast axis was 90° to the armor at the point of placement, the degree to which the tank's armor was sloped had no effect on the device's penetration. However, this requirement for direct placement made use of the device very dangerous to the infantryman placing it, as that infantryman would be highly vulnerable to enemy fire. The Hafthohlladung device itself was very effective against armor, being able to penetrate around 140 mm of RHA.
The H3 (3 kilos weight) and the H3.5 (3.5 kilos weight) models can be easily distinguished; the 3.0 has a bottle shape while the 3.5 looks like an inverted funnel. The item "ORIGINAL WW2 German 3 Kg, Hafthohlladung Magnetic anti-tank mine" is in sale since Tuesday, July 3, 2018.This item is in the category "Collectibles\Militaria\WW II (1939-45)\Original Period Items\Germany\Personal, Field Gear". The seller is "eena77" and is located in Vilnius. This item can be shipped worldwide.