Embossed marks on manuscripts

Has anyone come across examples of blind embosses or blind stamps? I
have noted three different types on a manuscript I am investigating
and would like to know more about them and their source.  They
measure approximately 1cm x 1cm and are found on either the first or
last page of signatures, in the bottom left proper corner or upper
right proper corner.  The first looks like the letters H&L with
laurel leaves beneath, inscribed in a rectangular form with cut
corners.  The second looks like a crown with BATH written below,
also inscribed in a rectangular form, portrait orientation with cut
corners.  The third sample is a branch inscribed in a circle, with
the words

    FELER and Co. / MILL RIVER

around the circumference.  I have raking light photos of all of
these that I can easily send along if anyone would like to see what
I am describing. Again, they are all pressed into the paper, there
is no ink present.

Brittany Webster
Conservator, Conservation of Sculptures, Monuments and Objects
Contract Project Archivist
The Archive of the Jesuits in Canada
25 Jarry Street West
Montreal
Quebec H2P 1S6
Canada


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                  Conservation DistList Instance 28:26
                Distributed: Saturday, November 29, 2014
                       Message Id: cdl-28-26-014
                                  ***