This is 3 of 9 (sometimes called "code 39"), a widely used barcode standard that includes capital letters, numbers, and several symbols. This is not the barcode for UPC's (universal price codes) found on products at the store.  However, most kinds of barcode scanners will recognize 3 of 9 just fine. ... Two versions of 3 of 9 are included. The font called "Free 3 of 9" is the basic 3 of 9 standard. It includes letters and these symbols: $ % + - . and /. The font called "Free 3 of 9 Extended" covers the extended 3 of 9 standard. It includes all the ASCII characters.