(photos of the labels at the end; click images for larger view)
INTERIOR LABELS / TAGS
Inside the 5110 chassis, there is one “obvious label” near the switches at the top. Then there are several additional “hidden labels” deeper inside the chassis. For these other labels, one is behind the video display (along the main power cable), and the other is along the side of the video display components. Another label is inside the power supply.
Label near the top internal switches reads:
WATER INST. INC.
IBM NO. 1608885
E.C. NO. 836626
DATE MAR 29 1979
(behind this is a sticker that reads LINE VILTAGE PRESENT WITH MACHINE POWER OFF)

The label along the power cable reads:
ELECTRICAL ASSY INC
Part No. 1608274
E C 829551
Date JUL 6 1979

The sticker labels at the rear of the display unit read:
DISPLAY UNIT
IBM P/N 16088865
EC 832674
MODEL QDM5A-02
SER. no. 98080
DATE CODE 13-1979
CAUTION: This chassis contains components critical for x-radiation safety. For continued x-radiation safety please replace with a component of the same type. Product complies with DHEW Rules 21 CFR Subchapter J applicable at date of manufacture. MANUFACTURED CM – MARCH 1979
NOTE: Behind the video display is mounted the “alarm” speaker.


The sticker and label on the side of the display unit read:
CAUTION P/C BOARD-340V CRT-9KV
WATER INST. INC
IBM NO. 1608120
EC NO. 829577
DATE JUNE 11 1979


Label behind the expansion panel on the power supply:
(the label and cable it is attached to do not move very far, so at the moment I don’t have the means to get a complete description of this label — and I’m not inclined to disassemble the power supply yet)
LACRO
(followed by another assembly number and date)
