I'm researching a history of the British hippy movement. I've interviewed an old hippy who claimed that he travelled to India along the hippy trail in a vehicle that had been converted for British spy Greville Wynne, who used the vehicle in trade shows in the Soviet bloc. Wynne used these occassions to collect information from Oleg Penkovsky, 'the spy who saved the world.'But what I can't seem to find out is what Wynne was actually purporting to sell. I'd be grateful for any information.