I would like to hear the comments from users of the Ragtime Automated
Music spool frames.  I have been informed that these are made of ABS
plastic; is this true, and how rigid and durable are they?  Is the
tracker bar made of metal, does the tracking work, do the screws strip
easily?

Any info would be most appreciated.

Bernt W. Damm, Restorer of Automatic Musical Instruments,
Cape Town, South Africa