Just expanding to clarify.
The sender of the original cover, would have paid an extra fee (Late Fee)
and possibly posted the cover in a "Late Fee" box, to catch a particular service.
If that was not the case, and the letter missed the intended service,
the "Too late" cachet would be stamped to show the cover did not get the service
that the "late fee" paid for.
Please retain that image, I have never seen the "too late" fee in italics before. poss rare
Borrowed from the internet...
