1978 Buehler Mounts catalog/circular which measures 8-1/2" x 11" with 4 pages CONTENT: A catalog which covers Buehler micro-dial bases,two-piece bases,long one-piece bases and short one-piece bases with a rifle action chart for application.There is also pistol bases,double split rings,engraved split rings and streamlined solid rings.The back cover has other Buehler gun accessories and tools. Excellent condition