First Day Covers.- A large collection of First Day Covers signed by various aviation and naval officers, including: Edgar Percival, John A. Kent, Oskar Rosch, Alan C. Deere, Ronald Ivelaw-Chapman, K. J. Goodwin, Ian Park, Edgar Percival, Silas Morehouse, Leo J. Sullivan, John Rogers, J.S. Stevens, Charles McCormac, Peter Terry, occasional light toning, slight foxing, all mounted onto large album pages (large quantity)