yourATCstore ATC Love's Greeting Valentines Day Collage Sheet. I created this Valentine sheet for those artists who want to make numerous identical ATCs. This sheet also comes with colorful phrases to match the phrase colors on the vintage Valentine cards images. This is a matte finish collage sheet that was professionally printed on and comes in a crystal clear bag for protection. Sheet measures 8 1/2" X 11" and is Acid Free.