Oorkondenboek van Holland en Zeeland tot 1299
This four-volume set published between 1970 and 1996 has all the details and variants of all the official documents such as charters related to Holland and Zeeland from the end of the 7th century to 1299.
- I - Eind van de 7e eeuw tot 1222
- II - 1222 tot 1256
- III - 1256 tot 1278
- IV - 1278 tot 1291
A C F Koch prepared the first volume, published by Nijhoff in 's-Gravenhage. J. G. Kruisheer prepared the other three, published by Van Gorcum in Assen. Those two plus Johannes W J Burgers are responsible for the index of all four volumes published by Nijhoff in 2005.
The complete text of all four volumes as image, pdf, and OCR along with the index is available online at Historici.nl. This terrific resource is sponsored by Huygens Instituut voor Nederlandse Geschiedenis (Huygens ING) and the Koninklijk Nederlands Historisch Genootschap (KNHG).
Scans of many of the original charters related to Delft are available at Digitale Arena Delft.