You have the later, post 7/55 type tap fitted. The lever has been fitted 180 degrees out too. It should be on main tank at 12 O/C and reserve at 3 O/C. The intermediate position is off.
Mike
July 1957 UK supplied RHD Oval. 1972 World Champion Beetle. 1978 UK supplied RHD 1303LS Cabriolet. 1973 UK supplied RHD 1303s.