leaving the US version of Revolver with "three key songs... ripped from its heart". Collectability The original LP sleeves for Yesterday and Today were assembled at Capitol's four US plants situated in different cities: Los Angeles, California; Scranton, Pennsylvania; Winchester, Virginia; and Jacksonville, Illinois. Numbers designating where the covers originated were printed near the RIAA symbol on the back; for example, stereo copies from the Los Angeles plant were designated "5" and mono Los Angeles copies were marked "6". Mono copies outnumbered stereo copies by about ten to one, making the stereo copies far more rare and valuable to collectors. Capitol initially ordered plant managers to destroy the covers, and the Jacksonville plant delivered most of its copies to a landfill. However, faced with so many jackets already printed, Capitol decided instead to paste the replacement cover over the old ones. The new cover had to be trimmed on the open end by about 3 mm (1/8 inch) because the new sheet, known as a "slick", was not placed exactly "square" on top of the original cover. Tens of thousands of these so-called 'trunk covers' were sent out. As word of this manoeuvre became known to the public, owners of the altered cover attempted, usually unsuccessfully, to peel off the pasted-over cover, hoping to reveal the original image hidden beneath. Eventually, the soaring value and desirability of unpasted-over 'butcher covers' spurred the development of intricate and complex techniques for peeling the 'trunk cover' off in such a way that only faint horizontal glue lines remained on the original cover. Copies that have never had the white cover pasted onto them, known as "first state" covers, are very rare and command the highest prices. Copies with the pasted-on cover intact above the 'butcher' image are known as "second state" or "pasteovers". Today, "pasteover" covers that have remained unpeeled are also becoming increasingly rare and valuable; these can be identified if Ringo Starr's black V-neck shirt from the original cover can be seen through the paste-over to the right of the trunk lid (in alignment with the word "Today" from the album title). Covers that have had the 'trunk cover' removed to reveal the underlying 'butcher' image are known as "third state" covers; these are now the most common (and least valuable, although their value varies depending on how well the cover is removed) as people continue to peel second state covers.