Any information about these concrete brick mines? A lot of them has been found in the past from former German storage area in northern Finland. It's a brick size concrete block with cast-in 200 grams TNT-block and cavity for Z.Z.42 fuze. Fragmentation filler in concrete is finger tip size rocks.
There has been some kind of wooden cover around the brick with a steel plate attached. Notches on the plate fit in safety pin of Z.Z.42. All found mines have been burned and wood has disappeared.
There has been some kind of wooden cover around the brick with a steel plate attached. Notches on the plate fit in safety pin of Z.Z.42. All found mines have been burned and wood has disappeared.