All balance staffs listed are New Old Stock, and have been acquired through estates and auctions over a decade now. I personally inspect every balance staff using a digital microscope before adding to inventory. As many of you likely know, buying parts from these sources can be a crap shoot, often times they may be rusted or damaged. It is important to me to only list quality products, so please let me know if you have any issues with the product you receive.
I also do my best to make sure the balance staffs are the stated sizes. This can obviously be difficult, but I use a JKA-Feinmaster bench micrometer to check at least a few of the key measurements if the package was not sealed or is hand-labeled.
I do my best to list all applicable movements on each balance staff page. I use MATSYS300 system as well as period catalogs by the various manufacturers. I don't think these publications are perfect, so if you know for sure that any description is inaccurate, please let us know!
There's more coming as well - specifically, I'm working on a full list of Staff sizes as well, so you can find a staff by size.
We have an ever growing number of balance staffs, and searching them can be challenging. Here's a few tips...