HET STRIJKINSTRUMENT, 1982, Exhibition catalogue Den Haag Museum with commentary by the Dutch Violin Makers Association, Soft bound
VIOOLINBOUW IN NEDERLAND, Violin making in the Netherlands, in Dutch, Soft bound
400 JAAR VIOOLBOUWKUNST IN NEDERLAND : 400 YEARS OF VIOLINMAKING IN THE NETHERLANDS by Jaap Bolink et al., 1999, isbn 90-7297-782-3, Violin making and makers in the Netherlands 1599-1999, in Dutch and English
DE HOLLANDSCHE VIOOLMAKERS by Dirk J. Balfoort, 1930, Dictionary of Dutch Violin maker, in Dutch with forward by A E Hill, Some age staining
THE VIOLIN MAKERS OF THE LOW COUNTRIES by Max Möller, 1955, On instruments and makers from the 17th to early 20th century, in English , no 1121 of 1500
ITALIAANSCHE VIOOLBOUW VAN GASPAR DA SALO TOT PRESSENDA by Max Moller, 1938, Dictionary of Italian violin makers, no 850 of 1000
ANTONIUS STRADIVARIUS by Dirk J Balfoort
Letter: Roger Graham Hargrave (photocopy) (Jul 2 2025) Photocopy of letter by R. G. Hargrave dated July 2 2025