Interest is high for an upcoming Dunbar Sloane auction, with movie-maker Peter Jackson tipped to be interested in two rare biplanes going under the hammer. Also on offer is a piece of the infamous flagstaff Hone Heke repeatedly chopped down, kicking off the first of the land wars. The two biplanes on offer include a 1944 Tiger Moth and the last remaining 1929 Simmonds Spartan in the world. Peter Jackson is an avid World War I-era plane collector. Dunbar Sloane confirmed Jackson’s buyers had been alerted to the upcoming sale and had shown initial interest. “But we won’t know if he is going to put in a bid until the day. Buyers don’t usually let us know they are definitely bidding before the day.” Planes go to auction