To obtain the relative value in U.S. currency for a given year the number of guilders was divided by the rate of exchange (guilders or pounds per dollar) for that year. The value in U.S. currency for a given year was then entered into the formula at What is the Relative Value? to obtain the relative value in currency in “today’s” money (Consumer Price Index for 2005).
Doudart de la Grée, Marie-Louise(Ámsterdam 1966) Geen Standbeeld voor Van Meegeren (No Statue for Van Meegeren). Nederlandsche Keurboekerij Ámsterdam. OCLC64308055 (N.B. Although in Dutch, it most important as a primary source of knowledge. Many citations from Doudart can be read in English in Kilbracken 1951.)
Godley, John (Lord Kilbracken) (1951). Van Meegeren, master forger. p:127 - 129. New York: Charles Scribner’s Sons. LC call number: ND653.M58 K53 1966. OCLC31674916
Coremans, Paul B. (1949). Van Meegeren’s faked Vermeers and De Hooghs: a scientific examination. Amsterdam: J. M. Meulenhoff. OCLC2419638.
Decoen, Jean (1950). Back to the truth, Vermeer-Van Meegeren :Two genuine Vermeers. Rotterdam: Editions Ad. Donker. Illustrations: b/w. OCLC3340265.