The wheeled sample display unit shown in the drawings has {HEAD ~ three sample cases} stacked in {TAIL ~ a vertical arrangement} and held together by latches 15 on the front of the cases and latches 15 on the rear of the cases 
stacked in
The wheeled sample display unit shown in the drawings has { HEAD ~ three sample cases } stacked in { TAIL ~ a vertical arrangement } and held together by latches 15 on the front of the cases and latches 15 on the rear of the cases
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH