Is the name carved, or imprinted with a metal stamp? This is a common way for a senior worker at a factory to sign his work, rather than the main maker.
Schneider is a very common surname, and it is not surprising that there were many piano and music firms named Schneider. One was apprenticed as a tuner in Germany, moved to India and was involved in some way with Bevan, large retailers in India.
At the moment, this forum is not displaying photos properly, but the iron plate and what I can see of the design suggests that it might be mid-1800s.
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If you find old references or links on this site to pianogen.org, they should refer to pianohistory.info