What is "sealing-wax"

Usage examples of "sealing-wax".

I dispatched Clairmont to a stationer's, where he bought me a beautiful morocco case with lock and key, containing paper, pens, sealing-wax, inkwell, paper knife, seal, and in fact, everything necessary for writing.

Then one morning the coloured postman wheeled his bicycle up the dusty road, burdened by an enormous package wrapped in brown paper and blazoned with stamps and stickers and red sealing-wax.