Marler Type 27
The same characteristics as Type 25 but there is a nick in the frame below and a mark to the right of the right numeral box.( Type 25 The lower left frame junction line, the vertical line of the left numeral box and the vertical line of the upper right are all unbroken .)
Marler Type 27 will demonstrate Fluorescent Ink when viewed under UV light.Plates Used: 129
Earliest reported use: Mar 14, 1924