Years ago, while working at a sheetfed litho shop, I was bored one day and looking for something to fill my time. The prepress supervisor asked me to make a press sheet with all the PMS color chips, plus all of their corresponding CMYK values right underneath the color chips. He seemed puzzled at how excited I was to take on the task. Preparing this file was fun! We used that press sheet for a couple of years (until, sadly, the printing company went out of business). This color chart was particularly helpful in helping us color-match on our large format solvent roll printer and UV flatbed printer.
I saved the file and stumbled across it recently. Click here for a downloadable PDF. It is a 38" x 25" press sheet, complete with gripper. Enjoy!