We are trying to find out about a Nathan Dohrmann Co., San Francisco.
     We found a white-improved earthenware plate/bowl fragments with green
     trademark -- 'VITRIFIED' beneath fragmented lion motif; 'JOHN MADDOCK
     & SONS LTD','ENGLAND', 'PANAMA', 'NATHAN DOHRMANN CO', 'SAN
     FRANCISCO'.

     We have identified John Maddock & Sons, Staffordshire Potteries, ca.
     1896+, but we have been unable to find anything on Nathan Dohrmann Co.

     Thank you
     Linn Gassaway
     Archaeologist
     Yosemite National Park
     [log in to unmask]