I have the Bergeon tool "Kraai" shows via a video. Expensive as always with Bergeon but works a treat. I have not had much success using Alum but I suspect it must be my method the only issue is the amount of time it takes.
As long as you remove all of the other steel component so you only have the plate then you can use alum mixed in water and that will dissolve out the screw. If you're in a rush you can warm up the solution It will dissolve it out faster.
A vintage brass cased miniature carriage clock having porcelain panels to the sides decorated wit
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