The Paper Box Maker and American Bookbinder, Vol. XI, No. 8, June 1903. (p. 8)
Needless to say, I wouldn’t recommend trying this with your own lever guillotine.

Book Conservation
The Paper Box Maker and American Bookbinder, Vol. XI, No. 8, June 1903. (p. 8)
Needless to say, I wouldn’t recommend trying this with your own lever guillotine.