Bert sees an advert in the paper for a new caretaker at the Transport Research Institute. Looking for a better-paid job and fancying himself as an inventor, Grandad sets to work on his new creations - including wine-powered rocket fuel.
Bert sees an advert in the paper for a new caretaker at the Transport Research Institute. Looking for a better-paid job and fancying himself as an inventor, Grandad sets to work on his new creations - including wine-powered rocket fuel.
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