A FASCINATING OLD VINTAGE SET THREE GPO SWITCHBOARD OPERATORS FLIP INDEX FOR VARIOUS REFERENCES INCLUDING HOWVTO CORRECTLY RECORD A CREDIT CARD NUMBER, " FREEPHONE" NUMBERS.

ALL THREE ARE FROM CORNWALL AND PROBABLY FROM THE EXCHANGE.

THESE ARE VERY INTERESTING OLD COLLECTORS ITEMS WHICH ARE FROM THE LATE SIXTIES OR VERY EARLY 70s.

EACH FLIP INDEX MEASURES APPROXIMATELY 23 cm X 11.5 cm.

THEY ARE A BIT OLD AND ROUGH AS TO BE EXPECTED WITH SUCH A WORK-A-DAY ITEM AND LUCKY THEY STILL SURVIVE.

THE OVERALL CONDITION IS AS DETAILED IN THE PHOTOGRAPHS.

ALL THE BEST