Marler Type I

(i) A mark on the inside of the frame opposite the right numeral

(ii) A spur upward from the upper left corner,

(iii) minute dot in the bottom margin below the left "2", and

(iv) A short white line in the frame opposite the right numeral box.

Types I and J will be found with a straight edge at the bottom.

Plates Used: 87-89

Earliest reported use: Oct 23, 1915