Sudan, 1931 (Circa) Air Duty and Key Plate Proofs, two pairs in blue on unwatermark paper, nice margins all around, fresh, Very Fine. Estimate $100-150.
Harmer-Schau Auction Galleries, Inc. 1333 North McDowell Blvd., Suite B • Petaluma, California 94954
Tel: 707-778-6454 • Fax: 707-763-6772 • Toll Free 800-378-6454
E-mail: info@harmerschau.com
