71 fig1 is preferably fabricated of 0 125 inch thick aluminum sheet and includes generally rectangular openings 17 18 19 which form the cash drawer bay 17 an open coin can bay 18 and a utility bay 19 as previously noted the rear panel 71 is generally rectangular on three sides and has a crowned contour 79 on its fourth side matching the contour of the crowned portion 65 of the top front panel 62 a second 34 d 34 hole 81 is formed near the center of the middle of the rear panel 71 to accommodate a second lock for a second of the sliding doors suitable holes are again drilled to facilitate attachment of the rear panel 71 to the flanges of the inner frame 33 and to cooperating corner trim elements holes 140 attach corner trim elements 28 while holes 141 attach receptacles for attaching a coin dispenser holes 142 attach top frame support clips 125 holes 143 attach internal frame structure 33 a side panel 83 is illustrated in fig1 the side panel 83 is generally rectangular and may be fabricated from 0 063 inch thick aluminum sheet an axle hole 85 is centrally located in the side panel 83 to lie concentrically with the hole 41 of the respective juxtaposed bulkhead panel 35 37 exemplary dimensions d 5 d 6 and d 7 for locating the hole 85 are 12 inches 24 inches and 4 355 inches respectively again a number of holes.