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This is conveniently done by cutting a large hole, the size of the brass cell of the object glass, through a sheet of corrugated strawboard, and slipping this on over the cell.

The cheapest grade is the strawboard, for which there is no place in library work.

A piece of wood can then be glued on to the strawboard along the pencil line at the back and another at the end.

In 1881, Steele & Price, of Chicago, were the first to introduce to the trade all-paper cans, made of strawboard, for coffee.

Book and parcel post volumes should have three or four thicknesses of paper, and if bound volumes a strawboard on either side as well as paper.