Including: 19 Sotheby's London catalogues dated 26th November 1962, 11th February 1963, 10th June 1963, 8th July 1963 x2, 25th November 1963, 20th May 1964, 8th June 1964, 7th December 1964, 29th March 1965 x2, 12th July 1965, 15th November 1965, 27th June 1966, 28th November 1966, 28th February 1967, 26th June 1967, 20th November 1967, 25th June 1968 and a Sotheby's New York Pre-Columbian art catalogue 25th February 1981; 5 Christie's London Ethnographic and Pre-Columbian catalogues dated 6th November 1962 x2, 22nd November 1964, 21st February 1967, 21st May 1968; 2 Christie's Tribal Art catalogues New York 7th May 1980, Los Angeles 14th February 1981; 5 Phillips London catalogues dated 25th January 1983, 12th March 1985, 8th July 1992, 8th December 1992, 25th June 1998; 2 Bonhams catalogues 16th December 1964, 3rd April 1989; a Puttick and Simpson Primitive Art catalogue 7th September 1965. (QTY)