Mr. Krause:
Heavens no I haven't had the privilege of holding the Sauer records. But it appears a scanning scheme would need to be in place before visiting the archives. Yes, I was referring to the Sauer Work Books.


There appears to be Louis Kelber's stamp on the tubes but it is difficult to tell. Also just beside the Sauer stylized "S" on the right tube there appears to be some initials encircled.

Kind Regards,

Raimey
rse