Hand written sold prices in catalogue.
Sotheby's Auction Catalogue 1985 Fine Instruments of Science and Technology
Sotheby's Auction Catalogue 1987 Fine Instruments Science & Technology 1600-1950
Sotheby's Auction Catalogue, New York 2005 Contemporary Art Morning Andy Warhol
Hermann Historica Munchen Auction Catalogue 3 Vols Softcover Military Antiques
BONHAMS - Auction Catalogue - Fine Portrait Miniatures - 2011 - antique research
Christie's South Kensington - Toys Teddy bears Dolls - Auction Catalogue - 1997
