Lignites - Truax Traer Coal Comp. Velva - Burleigh - Kincaid
Use The Southern Trade Marked Coals - Mining
Coal - Coalman - Winter -
Coal - Oil - Hands - Goes
Table salt - Royal Dutch Salt Industry - Boekelo
Salt tower - - Map - World - Hengelo
Coal mine - Oranje Nassau Mines - Heerlen
Coal stove - Coal kit - Order list
Salt tower - Hengelo
