Last Updated: Jan 3, 2026
Marler Type BO2
A white mark or nick in the upper right corner of the frame.Plates Used: 3-4
Earliest reported use: Nov 8, 1912
Click to expand image of type characteristics
Last Updated: Jan 3, 2026
Plates Used: 3-4
Earliest reported use: Nov 8, 1912
Click to expand image of type characteristics