I would have guessed M. Sch. like one seen in DGJ Nr. 26 Summer 2005 Volume 8, No.2 and is on page 14. There was a Mortiz Schilling but I wonder if Max Schleenstein used it or if the M. Sch. as seen on examples was his. Serial numbers of those Dalys are in the 26k range. If I'm not mistaken Mr. Hallquist has a Daly with a 1924 date. Let me see if I can locate it: maybe from August 1924 and a serial number in the 11k range?

Kind Regards,

Raimey
rse