2 7/8" X 3 7/8" (73mm X 98mm)

(front skirt) 19 / E.S.A.

(rear skirt) A.V.1.         

Picture courtesy Don Mecklenborg

2 7/8" X 3 7/8" (73mm X 98mm)

(front skirt) 5 / E.S.A.

(rear skirt) A.V.1.      

Picture courtesy Bob Berry

2 7/8" X 3 7/8" (73mm X 98mm)

(front skirt)  E.S.A.                       

(rear skirt) A.V.1.                         

(side skirt pyroglaze) FERAN SA

Picture courtesy Dan Wagner