Modern/Post-War Photos

Unidentified

FB brummbar

Came upon another most likely WW2 related find.This strange cylinder was found in the same neighbourhood as a GMC 6x6 doorpanel and mine knockers from a Sherman Crab(the heavy balls at the end of the chains).Found during road works in the Netherlands.The exact dimensions are:diameter 6,5 cm and height 6 cm .The diameter of the hole is 28 mm(photo's also on the forum page).Again I hope someone in here can solve the riddle :) Have a nice weekend greetz,brummbar