20th Century Telescope

First Questar advertisement. First appearance in an advertisement of an updated finder mirror cage (September 1955).

Very First Advertisement

1 1/3rd Page Horizontal

Questar advertisement, <em>Sky and Telescope</em>, June 1954 — Questar advertisement, *Sky and Telescope*, June 1954. Questar Corporation

Sky and Telescope, June 1954, 272-273.

Questar in Case

1 1/3rd Page Horizontal

Questar advertisement, <em>Sky and Telescope</em>, May 1955 — Questar advertisement, *Sky and Telescope*, May 1955. Questar Corporation

Sky and Telescope, August 1954, 344-345.
Sky and Telescope, September 1954, 384-385.
Sky and Telescope, October 1954, 434-435.
Sky and Telescope, April 1955, 240-241.
Sky and Telescope, May 1955, 290-291.

Potted Plant

1 1/3rd Page Horizontal

Questar advertisement, <em>Sky and Telescope</em>, March 1955 — Questar advertisement, *Sky and Telescope*, March 1955. Questar Corporation

Sky and Telescope, March 1955, 210-211.

Potted Plant and New Finder Mirror Cage

1 1/3rd Page Horizontal

Questar advertisement, <em>Sky and Telescope</em>, September 1955 — Questar advertisement, *Sky and Telescope*, September 1955. Questar Corporation via archive.org

Sky and Telescope, September 1955, 472-473.
Sky and Telescope, October 1955, 504-505.