An open collection of examples of British sigillography (matrices, royal charters with seals, seal impressions, and related material), collected by Bruce C. Willsie, Class of 1986.

Consists of six Byzantine lead seals: 1) anonymous, 13th century (middle-second half), 24-syllable metrical seal; 2) Niketas, proedros and doux of Antioch, 1034 A.D; 3) Thoros I Roupenids, 13th century (first third), 24-syllable metrical seal; 4) John, metropolitan of Sardis, 11th century; 5) bust of St. Nicholas, 11th (mid) - 12th (early) century, 24-syllable metrical seal; 6) John, logariastes of the Tropaiophoros (St. George of Mangana), 11th century (last third).

Consists of 7,935 Western European documents and other manuscript materials collected by William T. Scheide (1847-1907) and his son, American businessman John Hinsdale Scheide (Princeton Class of 1896).

The Pre-Columbian Stamp Seals and Roller Seals Collection consists of approximately 150 clay stamp seals, roller seals, and flat seals with handles.