There were original sktech cards that are truly 1/1 and then there were the "mass produced" versions, which are the ones we have images. Notice the release notes on this page: https://www.tradingcarddb.com/Inserts.cfm/sid/1978/2007-Topps-Allen-&-Ginter for the Sketch set. We do have these listed correctly.
-- Dan --
Note: Please see my profile for more info regarding trading (section updated 3/4/2024). I have added a large portion of my inventory to the site, and currently have trading turned on (details are in my profile).