I'vegot some of both, It apears the early ones are longer and have two slots at the rear. The later ones are short,about 5/6 inches. the short one I have is part # 914.013.306.13 and has a diamond with a VD inside white stamp. $20 and I'll pay the UPS.
Al Meredith
ljgmere@aol.com I'm in Atlanta, Ga