While gathering the myriad items associated with the Cosmic Aeroplane, Blogmaster Michael heard from Ken Sanders that the shop commissioned original artwork for advertisements to be placed in the commercial telephone directory.
Further research found these old fragile phone books, printed on the most acidic pulp paper, stored in the Rare Books Division of the Marriott Library. They outlined a rough history of the shop. These advertisements were sometimes reprinted as bookmarks or business cards, but every one was seen by hundreds or thousands of customers.
The following images and PDFs were photographed with the physical assistance of the Rare Books Department staff, especially Lezann Keshmiri — with infinite thanks from Blogmeister Michael. NOTE: Patience is a virtue when loading large PDF files.
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1967 to 1968 — For the first two years of the Cosmic Aeroplane’s existence, there were no listings in the paid advertisement section of the “Bell System’s” phone books. However, Polk’s Directory listed them as a “Psychedelic Shop” in late 1967.
PDF of this complete page from Polk’s Directory of 1967
NOTE: The store moved from 871 9th South to its second location, two doors east, at 875 9th South during these early days.
1969 to 1973 — The Yellow Pages listed the third Cosmic location on South Temple under Gift Shops:
The PDF files below show entire pages from phone books of the following years:
Former Cosmic partner Jack Bills opened a shop of his own, called The Connection, near the corner of 9th and 9th, and bought an advertisement in 1973. (Above)
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1974 and 1975 — The fourth incarnation of the Cosmic Aeroplane was in the Yellow Pages under Gift Shops, but was also on the Book Stores list by 1975:
The PDF files below show entire pages from the phone books of the following years.
1974 (Listed under Gift Shops) 1975 (Listed under Gift Shops)
1975 (Listed under Book Stores)
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Cosmic Aeroplane officially added the word “Books” to its name, in one form or another, while moving to the fifth (and last) location:
This PDF file shows the entire page from 1976.
This PDF file shows the entire page from 1977.
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For the next seven years, Cosmic Aeroplane purchased advertisements on two nearby pages in the phone directory:

(L to R) Quarter page ad from 1978; Text and column ads from 1978 — Art and lettering by Neil Passey.
PDF of entire page #177 — 1978 PDF of entire page #179 — 1978
PDF of entire page #207 — 1979
The single-column advertisement on the following page was new as well:
PDF of entire page #208 — 1979
PDF of entire page #215 — 1980
The single column advertisement was different yet again:
PDF of entire page 216 from 1980
NOTE: These same ads were repeated in the 1981 Yellow Pages.
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Double ads continued from 1982 through 1984:
Text ads replaced graphics on the additional page during these three years:
NOTE: The exact same advertisements were printed in 1982, 1983, and 1984.
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Single advertisements were the rule from 1985 onward:
PDF of entire page #201 from 1985
PDF of entire page #238 from 1986-1987 edition
PDF of entire page #236 from the 1987-1988 Edition
PDF of entire page #279 in the 1988-1989 edition
The Cosmic Aroplane ran this same graphic in their final Yellow Pages advertisement:
PDF of entire page #275 in the 1989-1990 edition
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CODA — The West Bay of the final Cosmic Aeroplane building housed a shop called Stargazer, which employed several Cosmic staff members until the end of 1991:
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The East Bay became the home of Comics Utah for most of another decade, inheriting the old address, and a portion of the old customers:
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We actively request your contributions of pictures, memorabilia, and oral histories concerning the Cosmic Aeroplane — please contact our blogmeister: mike_evans_exile@yahoo.com
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Comics Utah had both the East and West bays of the building from the beginning, if I understand correctly. The West bay wasn’t given up until long after Comics Utah was acquired by another company in California, after Stephan (the original owner) retired. Just wanted to clear that up!