Original pushers (Speedmaster 145.012)

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Hi, my 145.012-67 that I acquired a couple of years ago came with a service crown and pushers, but it also came with what appeared to be the original pushers (in a separate bag). I also recently sourced a flat foot crown and am planning to have it swapped soon (perhaps while having the entire watch serviced), so I am wondering, should I also have the original pushers cleaned and put back on the watch?
 
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should I also have the original pushers cleaned and put back on the watch?
These pushers are not original either.
Original period pushers have brass tips. Not steel.