Restoration of an Unusually Rare doorbell. A Ghost Called ME!

I bought this doorbell at a flea market literally for a penny. It seems to me that the seller was ready to give it away for free, but in order not to arouse suspicion, he set a symbolic price for it ($ 1). Outwardly, the bell was in poor condition, there was heavy rust everywhere, and signs of a bad attitude towards this little thing. Restoration process: The first thing I tried to disassemble this doorbell, but almost all the screws were covered with thick rust. I generously doused all the screws with rust remover and left it like that for a couple of days. After I dismantled the doorbell, I saw the stamp of an old English company on the condenser. The condenser was all covered with a layer of rust and, unfortunately, the brand could not be preserved, but the condenser itself was in working order. With the help of epoxy, I repaired the cracks in the doorbell housing, cleaned everything well and painted it. I also had to replace the connecting wires, as they became very hard over time and