Some things I find interesting.
 Hope you also do....

Dummy Testing Coils with Blue Defacement Lines

Shown below is an additional example of blue defacement lines on tagged Cottrell press FTPO coils.  Longer strips, 12 or more stamps, would be needed to show a complete revolution of a usually sized Cottrell mat... if these defacement lines were indeed actually applied on the Cottrell press. 

It is still unknown if these defacement lines were added by BEP, the USPS or others.

To more easily see the differences, examples are at 300%, scanned at 75 dpi and saved as jpgs at 90 quality.  Thank you for your patience while the page loads. 

This line strip of six stamps has one thick blue defacement line with some extraneous blue marks below the line.  This strip also has partial plate numbers believed to be 36111 and 36112.

Similar to the lines shown above, this pair however has a lighter blue defacement.  Ink starvation? 

This is an initial attempt to document for collectors the different defacement lines which can be found on the Cottrell press tagged FTPO coils.  This is NOT meant to be an exhaustive catalog of what exists.

Surely, other types of defacement lines must exist in other collections. 

If you know of, or have examples of others,  I would appreciate the information and will gladly post scans of your coils giving you full credit.

Hope to hear from you