Stick Pin/Eisenberg/Clear Rhinestones

Here is an item I have been unable to find another example of. I have talked with an member of a jewedlry list I belong to. She is what I would call an expert on Eisenberg. She assures me that 1)Eisenberg did use the "Block E" mark again in the 1970's on smaller items.(it was originaly used in the late 1940's and early 1950's) 2)She also said Eisenberg did make stick pins durring this era. So, as far as I am able to ascertain, this really is an Eisenberg stick pin. It has lovely large clear glass rhinestones that are prong set. The small round outer stones are either glued or bezel set. To me they look as though they could be bezel set. The nib is a well designed and made one with decorative diamond motif. Unfortunately, I just dropped this wonderful little jewel and chipped the large round, center stone!!! OMG! I can't believe I did that! I will photo it and have on hand for anyone who wishes to see it. Just email me and ask. The entire pin is approx. 3 1/2" long abd the top is approx. 1" across. The shipping fees quoted are for priority/Insured in USA.