|Restoration of our antique Swiss bank safe deposit boxes|
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Although they were in constant use and perfect working condition for almost a century, our antique Swiss safe deposit boxes did not look like museum pieces when we acquired them. The locks' mechanism were all in brass to guarantee corrosion-proof functionning, but they never had been polished and were covered in a thick layer of grease.
Each lock we restore is fully disassembled and parts are packed by groups according to what work will be necessary on them. You can have a look at one our internal documents showing the parts of a raw combination lock. They don't look like much at this stage.
Parts are then cleaned in a soft acidic bath. Then each mechanical part that requires it is polished by hand, one by one, by a Swiss artisan. Some parts have lost their coatings and are plunged in galvanic bath to restore their chrome or nickel plating.
Swiss Federal Bank Fichet Lock
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