Explorers on tandem bicycle expedition to seach for Biblical treasure . Mr and Mrs John Carveth Wells are leaving London on a tandem bicycle for Abyssinia where they hope to unearth the treasure reputed to have been hidden by the Queen of Sheba . Mr Wells is the son of the famous Anglo - Canadian explorer . Photo shows ; Mr John Carveth Wells and his wife Jill on their departure from London on their tandem bike . 21 December 1933