This style is quite popular. Easily made using wood it's essentially an open envelope around 3 inches deep. There is a hole in the top so that it can be lifted easily. Plates and proofs are loaded into the "envelope". The job docket is in a clear envelope on the outside. Several of these (i.e. a morning shift's jobs) can be put onto an office dolly and simply wheeled out to the press by either the plate inspector or press operator.
best, gordo
