Ars Antigua Slim Writing Blocs (Notepads) - Apollo Butterfly &bull; Engraving 1875 &bull; Two Blocs of 50 Sheets Each - Total of 100 Printed Sheets Rare 1865 engraving of an Apollo Butterfly 1 package of Slim Writing Blocs Package (2.50 x 8.25 inches - 2 blocs of 50 sheets each per package for a total of 100 printed sheets Premium heavy 80 lb (118 gsm) archival paper - perfect for personal and business notes and jottings - both sizes fit unfolded in a #10 standard envelope - Made in America Ars Antigua "signature" lightly printed image in the middle of each sheet. The finely detailed engraved original images are meticulously reproduced to show all the fine detail of the originals Ars Antigua writing blocs have been sold at leading museums and cultural institutions throughout the U.S. and Europe since 1989