Questar-Autocollimator
Questar-Autocollimator with Case
2/3rds Page Vertical

Scientific American, May 1972, 54.
Scientific American, June 1972, 7.
2/3rds Page Vertical

Scientific American, October 1972, 99.
Scientific American, January 1973, 115.
Scientific American, May 1973, 9.
Scientific American, May 1974, 138.
Scientific American, August 1974, 109.