Pack of 20 primary source documents image cards allows students to see and examine important historical documents. Includes copies of documents, maps, photographs, political cartoons, lithographs, diagrams, and letters, all in a mix of color, black-and-white, and sepia finishes. Also includes an easy-to-read copy of key documents. A great resource for a gallery walk exercise in your classroom.span style=”color:#FF0000;”Download the Gallopade Free Online Teacher;#39;s Guide for Primary Sources PDF located in “Additional Info.”/spanAll levels. 8 x 11 inches each. Cardstock.