Fifth Republic (1958–present). 1-franc I.E.O.M. gold Piéfort, burnished (PROOF) blank, 1979, Paris.

On the obverse: FRENCH REPUBLIC - I. E. - O. M. The Republic, draped and wearing a helmet, seated facing forward with her head turned to the right, on a throne with lion-head armrests, before the Tablets of the Law, holding a torch in her left hand and a cornucopia in her right hand; signature G. B. BAZOR; in the exergue (varying) (date) (varying).
Rev. NEW - CALEDONIA. Within a wreath formed of two branches, a crested cagou with outstretched wings, flying to the left; above, 1 FRANC.
Lec.41 - KM.P4b; Gold - 18.2 g - 23 mm - 6 h
This is the second-highest grade!
NGC PF 68 (8769661-012).
Burnished (PROOF) blank. Only 200 copies minted. Mint condition.
The Overseas Issuing Institute (I.E.O.M.) has been the central bank for the French overseas territories in the Pacific (New Caledonia, French Polynesia, Wallis and Futuna) since 1966