Robert Siegel Galleries: Worldwide Stamps and Postal History, 1365, New York

French Colonies, 1881, 1c-1fr Sage, Bristol Printing, Without Simulated Perforations (46 var - 59 var; Yvert 46 var - 59 var).

Thurn & Taxis, 1859, 10sgr Orange (14; Michel 19).

Germany, 1872 Correspondence to Lieut. Commander Oscar F. Heyerman.

Germany, 1872, 5gr Bister (6; Michel 6).

Germany, 1902, 5pf Green on Yellow, 25pf Orange & Black on Greenish, Plate Proofs (67P, 70P; Michel 70P, 73P).

Germany, 1908, 2(pf) Gray Postal Card, Watermarked (Michel P76).

Graf Ferdinand von Zeppelin Autograph.

Clara Adams Autograph.

Kiauchau, 1900, 5pfg on 10pf Carmine, Ty. "a", 56 Degree Overprint, With Violet Crayon (1 var; Michel 1IIb).

Marshall Islands, 1900 Stampless Official Registered Cover to New South Wales.

Germany, Used in Marshall Islands -- Ship Mail, 1910, 10pf Red Postal Card.

Danzig, 1920, 40pf Lake & Black, Red Overprint (42; Michel 38bOR).

Guatemala, 1886, 1c Black & Green (21).

Italian States, Roman States, 1852, 7b Black on Blue, 8b Black (8, 9; Sassone 8, 9).

Italian States, Sicily, 1859, 1g Grayish Olive Green, 2g Blue, 5g Deep Rose (12a, 13, 14; Sassone 4e, 6e, 9).

Italian States, Sicily, 1859, 1g Olive Green, 2g Blue (12, 13; Sassone 5, 8).

Italy, Giacomo Puccini Autograph Letter Signed.

Italy, 1930, 7.70l Trans-Atlantic Flight (C27).

Japan, Used in China -- Shanghai, 1876, 5s Green (54A).

Japan, Used in China -- Shanghai, 1876, 5s Green (54A).

Japan, Used in China -- Shanghai, 1876, 5s Brown (59).

Japan, Used in China, 1876, 5s Brown (59).

Japan, Used in China -- Shanghai, 1876, 5s Brown (59).

Japan, Used in China, 1876, 5s Brown (59).

Japan, Used in China -- Shanghai, 1879-1881 Weeks Correspondence from Foochow to Massachusetts.