Erhard :MAP - TABLEAU POUR SERVIR A L'ETUDE DU PANORAMA ET DU GROUPEMENT DES SOMMETS DU MASSIF DU PELVOUX AUTOR DE LA BARRE DES ECRINS ( INTERESTING PEAK COMPARISONS OF THE ECRINS RANGE OF MOUNTAINS IN THE FRENCH ALPS )
Published in 1890, measures 20" x 15". Published in Paris by Erhard.
An extremely unusual chart showing the mountain peak height comparisons of the Ecrins range. Printed on onion skin paper in red ink, in very good condition, folds as published,