Engraved stamp - FDC France ROYAL SALTWORKS OF ARC-ET-SENANS 1970, Signature HALEY (TG70-F1651D)

No. TG70-F1651D: FDC Envelope France 1970 "Royal Saltworks of Arc-et-Senans in the Chaux Forest, the Center of the Future (Doubs) - Authentic signature of the stamp designer and engraver Claude Haley"

- FDC illustration: "Main building of the Royal Saltworks of Arc-et-Senans" by designer Claude Haley

- French postage: 0.80 francs "Salines de Chaux - Nicolas Ledoux" (Yvert 1651)

- Stamp designer and engraver: Claude Haley

- Illustrated cancellation Paris "Philatelic Exhibition of the 3 Anniversaries 1870 - 1918 - 1945" 15.11.1970

- Authentic signature of Claude Haley (designer and engraver of the stamp)

Beautiful FDC envelope, hand-signed by the artist. Rare!