lacquer: a black resinous substance obtained from certain trees and used as a natural varnish
gum: any of various substances (soluble in water) that exude from certain plants; they are gelatinous when moist but harden on drying
tee hinge: a hinge that looks like the letter T when it is opened; similar to a strap hinge except that one strap has been replaced by half of a butt hinge that can be mortised flush into the stationary frame