The altimeter showed that he was hovering at eight thousand feet above ground-level.
"Flight From Tomorrow"
Henry Beam Piper
Above and below the viewplate were the pointers and the swinging needles which indicated the speed and angle of vertical movement, the altimeter, the directional compass, and the horizontal speed and distance indicators.
"The Airlords of Han"
Philip Francis Nowlan
He held the slide for long moments while the altimeter ticked off the lost altitude.
"The Golden Skull"
John Blaine