2 1/4" X 3 5/8" (54mm X 92mm)

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

(rear skirt) B.T.M.                                     

Picture courtesy Bob Berry

2 1/4" X 3 5/8" (54mm X 92mm)

(front skirt)  E.S.A.   

(rear skirt) C.T.N.E.

Picture courtesy Richard Wentzel

2 1/4" X 3 5/8" (54mm X 92mm)

(front skirt)  E.S.A.   

(rear skirt) C.T.N.E.

Picture courtesy Richard Wentzel

2 1/4" X 3 5/8" (54mm X 92mm)

(front skirt) 7 / E.S.A.

Picture courtesy Don Mecklenborg