EMR

Dear friends, I came across this advert in UK ebay, that is selling a replica German WW2 Goliath. I must be stupid, because ex film should mean the item in question has been in a film, right ? And secondly, claiming it is of museum quality, should that not be a real actual sized copy with all the gubbins, except the explosive of course ? I ask you as super-beings of knowledge to help me understand such, truth or a lie? Thanks.