That's what I like about this group, you learn something new about your passion all the time. The earliest reproducer I have is on my C-250, the one with the screwed on stylus plate. This machine is from 1916. It does have cork gaskets so they must have been been replaced very early on. I've had several reproducers with the screw-on plates and they all have had cork. They must have kept the dealers busy retrofitting!
Thanks for the info.
Bruce




Edison
switched to cork gaskets around 1924 as he found that cork retains

resiliency longer than rubber.  (from Ron D)

Hello Bruce,

You must have only seen the later DD reproducers, from 1912 to 1924 the gaskets are a soft natural rubber that began to harden in as little as six months. I have seen Edison cylinder reproducers with cork gaskets, Edison still did repairs into the 1920's.

Steve

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