IBM 6611 Pocket Manual page 68

Changing the 3-Digit Display from Vertical to
Horizontal Position: To change the 3-digit display
from the vertical position to the horizontal position
(with the Model 140 in the vertical position),
perform the following procedure:
Note: In the following figures, the three 7-segment
characters are lit to show the position of the
display.
1. Open the hinged lens.
Character
Holder
Hinged
Lens
(Open)
Figure 5-13. 3-Digit Display in the Vertical Position with
the Hinged Lens Open
2. Hold the character holder with your fingertips.
Chapter 5. Using the Model 140
5-15