Image Missing: Hearst Museum object titled Photograph, accession number 13-6866, described as Mungo Martin steaming a board for a box. Thunderbird Park, Victoria, B.C., October 5, 1961. Box making technique called Kerfing. A plank is split from a cedar log, notched in 3 places, steamed, bent, and then pegged at the seam, a top and bottom are added from another plank. Per Door Book/Accession Record: Mungo Martin steaming board.