13 appears to have been handwritten on a white label on the left-hand side, but it is now hard to read because the label is partly removed.
SN2202A53389 (the object's serial number) is handwritten in black ink inside the cover to the paper-roll compartmen
6 x 16 x 18 in.
There is a clear adhesive label inside the paper-roll compartment cover that reads, "82972A UPGRADE INSTALLED.". "6/30/87, X MESA 13641" is handwritten in red ink on the bottom of the object.. "MAST" and "Ciclone" are handwritten in black ink inside the paper-roll compartment cover.. There are four empty card-edge connectors in a bay in the rear of the object.