Gents, After carefully and I caution very careful inspection there appears to be an "L/11" stamped on the reverse of the Spange. I have inspected the piece once more and it passes the smell test (though not a conclusive test I may add) and the Spange definately has been attached to the ribbon for a very long time. I have purchased this piece from a reliable source and I just want to know that all is well with authenticity. I have noticed the second "9" is a little different that the first. However, I have noticed that it seems to be common for period made Spanges from the firm of J.E. Hammer and possibly others as witnessed with the maker mark. All in the know please put my mind at ease. Lastly, The blue thread on the reverse is a re-enforcement to the black thread which is very brittle and is still holding the ribbon together. Regards, Joel