Los 9936
Plis confiés: Entire letter franked with siège 20 c. (small nick at top) tied by dotted "A.P." (railroad auxerre to Paris) to Lons-le-Saunier with unclear arrival mark and clear "RÉPUBLIQUE FRANCAISE DARTOIS & YON AÉRONAUTES DU GOUVERNEMENT" on reverse; a fine and rare letter, signed Calves with certificate (1982)
