Hi!
     I have some late 19th/early 20th century tiles from a demolished
building. They were attached to the wall with a "mud" job, and the cement(?)
is still on the back of some of the tiles.  Can anyone tell me how I might
loosen the tiles from the cement/mortar "mud"?  I dont want to take a hammer
and chisel to the tiles...
Thanks.
Russ