Example of unadopted drawing (French Guinea, 1938) realized in grey pencil by René Cottet on cardboard that measures 24 x 15 cm; this drawing is really similar to that of the definitive issued stamp (you see fig. B9a), to exception of the trees disposition and the general view. Moreover, this drawing introduce the unusual characteristic of the indentation traced by the same Cottet along the vignette outline, simulating the aspect of the issued stamp. 

fig. B9

Definitive issued stamp (French Guinea, 1938).

fig. B9a