C & E Marshall balance staff E8955 for Elgin 12s Streamline No. 4177 P10

C & E Marshall cataloged balance staff E8955 for Elgin 12s Streamline movements, Combination Roller, Pivot 10, Factory No. 4177, Refill 805-22, new in envelope. See images for further details. This is a Transferred by Customer staff meaning a past watchmaker took it from anther system and added into their Marshall inventory so as to not have to look in several places.  I likely have several of these so the one you get may differ very slightly from the images. I specialize in hard to find watch parts and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item.