There are some ancient stone remains in Tongatapu, burial places (feitoka) built with great blocks, and a remarkable monument consisting of two large upright blocks morticed to carry a transverse one, on which was formerly a circular basin of stone.
Wooden pulleys are preferably made of maple, the rim being formed of small sections morticed, pinned and glued together, with the grain set in such directions that any warping of the material will leave the cylindrical form practically unaltered.
No windows were glazed, but were openings protected by wooden staves morticed into the frames above and below.