9 VFOG singles of the 10fr - 50fr vermillion - sepia Claude Chappe - Mt. Gerbier de Jonc, Vivarais from the 1949 Int'l Telephone/Telegraph Conference - Scenic Views Issues, includes 2 shades of #632.
Scott values these at $29.55 for very fine, so we estimate them at $22. The stamps offered here grade between 75 and 84 as follows:
