The complete instructions for regulating the Welte-Mignon T-100 system
were printed and sold by:

  Frank Adams, P.O. Box 3194, International Station, Seattle, WA 98114

If he is still in business, buy a copy from him.  It covers the grand,
upright and Vorsetzer models.  There may be other reprints; but this is
the one I used and it covers all adjustments in plain English.

However, who has new test rolls for the T-100 Welte?

Perhaps in place of all this agonizing over which system was the best,
someone could do all of the community a great service and reprint some
of these service manuals that today are probably long out of print and
simply not available anywhere.

Jim Crank