This section is from the book "The Boy Mechanic Vol. 2 1000 Things for Boys to Do", by Popular Mechanics Co.. Also available from Amazon: The Boy Mechanic, Vol2: 1000 Things for Boys to Do.
An ordinary spring mousetrap makes a good bread or milk-ticket holder. The wood part of the trap can be easily nailed or screwed to a door or window casing. The way the tickets are held is clearly shown in the sketch.
Ill: Trap Used as Ticket Holder