C & E Marshall balance staff E8827 for Elgin 18s No. 857 P12 Long Hub

C & E Marshall cataloged balance staff E8827 for Elgin 18s movements, Long Hub style, Pivot 12, Factory No. 857, refill 729-6, new in envelope. See images for further details. This is a Transferred by Customer staff meaning a past watchmaker took it from anther system, perhaps an Elgin factory cabinet, 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.