Certified plate proofs are the last printed proof of the plate before printing the stamps at the Bureau of Engraving and Printing. This plate proof features the Statue of Liberty in a repetitive pattern colored red, which dates back to 1961. They're made from 176gsm white paper and come in 11 different sizes. Choose between horizontal, vertical, and square orientations to cater to any design. .: Material: 176gsm white uncoated poster paper .: Available in 11 different sizes .: Blanks sourced from USA .: Horizontal, vertical and square options available