ANDORRA (French), 1931, 1c GRAY WITH DOUBLE OVERPRINT MINT NEVER HINGED, #1a, bottom selvage single, exceptionally well-centered for this issue, two strong and distinct overprints showing clear impressions on the back, fresh and extremely fine, scarce. signed by Champion twice, cat. $2,750.00, Yvert #2a @ €2,750.00, Maury #2c @ €3,250.00