The Onion is seeking specific back issues of its print publication. To identify if you have sellable issues, check the volume and issue numbers on the front page. Special issues may list these as "22-01" instead of "Volume 22 Issue 1".
The publication is primarily looking for complete runs of Volumes 14 through 17 (1988-1990), plus specific volumes from 1991 through 2013. Notable requested volumes include Vol. 22 Issues 4, 5, 7 & 16 from 1992, Vol. 29 Issues 19 & 22 from 1996, and Vol. 44 Issues 49-52 from 2008. If you believe you have relevant issues, you can submit details via a Google Form.
The publication seeks issues in good, clean, and readable condition. Once sold, issues become The Onion's property and cannot be returned. The more gaps in their archive you can fill, the more interested they will be in your collection.
Source: Hacker News · Summarized by HeadlinesBriefing