Hal Davis comments:

> Here is a web site where I found mainly brass gears:
> http://www.toy-kraft.com/entech/brassware.htm

Also from India, a broader selection:
http://members.tripod.com/Ashok_Banerjee/Meccanoville/full_range5.htm

There is also the Exacto System from Argentina:
http://www.exactosystem.com/

All three systems feature parts which are compatible with each other --
regular sized gears are 38 diametrical pitch, though the two sources
I've suggested also supply larger 20 d.p. components.  Ashok Banerjee
also supplies sprockets for use with ladder chain, though the size is
smaller than that found in most player pianos (but it _is_ the same
size as that found in Mellotrons, or at least the early ones).

I've been a satisfied customer of the two sources I suggest.  I haven't
done any business with Aries/Toy-Kraft.

Colin Hinz
Toronto, Canada