Sotheby and Co., & Sotheby and Co. (1964). Catalogue of an important album of engravings, etchings and woodcuts collected in the 16th century from a continental princely collection (sold by order of the present owner): Including Pieter van der Borcht, "The Skating Feast at Malines" ... which will be sold by auction by Messrs. Sotheby & Co. : day of sale: Tuesday, 10th March, 1964. London: Sotheby & Co.

Sotheby and Co., και Sotheby and Co. Catalogue of an Important Album of Engravings, Etchings and Woodcuts Collected in the 16th Century From a Continental Princely Collection (sold By Order of the Present Owner): Including Pieter Van Der Borcht, "The Skating Feast At Malines" ... Which Will Be Sold By Auction By Messrs. Sotheby & Co. : Day of Sale: Tuesday, 10th March, 1964. London: Sotheby & Co, 1964.

Sotheby and Co., και Sotheby and Co. Catalogue of an Important Album of Engravings, Etchings and Woodcuts Collected in the 16th Century From a Continental Princely Collection (sold By Order of the Present Owner): Including Pieter Van Der Borcht, "The Skating Feast At Malines" ... Which Will Be Sold By Auction By Messrs. Sotheby & Co. : Day of Sale: Tuesday, 10th March, 1964. London: Sotheby & Co, 1964.