Nice pair that shows the process from concept to finished piece. Original art is on 12x20" artboard w/art in mixed media, including cut-out baseball image. Has single sample calendar page (April) for New York Yankees attached. Reverse has small gold foil crown sticker at lower corner "A Creation Of Sam Gold - Premium King." Calendar front has hand-lettered "1959 Schedule" dating. Front has scattered handling smudges around outer margins w/minor age spotting between the Ballantine Beer rings logo and baseball. VF. Comes w/13x18.75" production calendar featuring different finished art as well as rest of the same calendar pad as on prototype art. Text on board reads "Ballantine Beer Present Philly Baseball," though calendar pad is clearly noted "New York Yankees. Scattered edge/corner tip wear w/streak of faint staining along upper right side. Fine/VF/ Unique lot for both baseball and advertising collectors. From the archives of premium creators Sam & Gordon Gold and comes with LOA.