Homage to the famed fighter-bomber of WW2 - the infamous P-51 Mustang. Designed by North American Aviation (NAA) in 1940 it entered the war in 1942 and was integral in the European campaign. A unique twist top rollerball pen design with an antique acid etched finish. The barrel is printed with WWII style plane markings. Packaged in a retro style custom tube, it's the perfect gift for any history.