[ John Tuttle wrote in 020702 MMDigest about a Steck tracker bar
 [ with extra slots.  (Photo at http://mmd.foxtail.co/Pictures/ )

I have seen this also on an early Steinway Pianola, a 1914 German
Hamburg model, if this is of interest.  This is the only example
I have seen.  It took me some time to work out the idea of how it
worked, which it must have, otherwise Steinway would not have used it.

I have a late model Duo-Art grand 1932, also an upright Ampico Knabe
1928, as well as an extensive collection of gramophones, phonographs
and a large vintage wireless collection.

Thanks for the great work you are doing.  How am I able to contribute
to the cause?

Regards.
Brian Lackie
Urunga, NSW, Australia

 [ Welcome to MMD, Brian.  We don't yet have a good way to accept
 [ contributions from abroad except for PayPal.  (Did you read that
 [ eBay plans to buy PayPal?!)  Someday, when Jody establishes a method
 [ to accept foreign currency, we will tell everybody how to contribute.
 [ Until then, please enjoy MMDigest gratis.  :-)
 [
 [ Can you recall for us any details about how the slotted tracker bar
 [ system worked?  -- Robbie