A New Slate Writing Wrinkle
Here is the bare outline of the idea which I have used
quite often to good results. Two slates are handed for
examination and cleaning. Without substitution the slates
are placed together and stood on an easel or upright. When
opened, message is written across one in bold hand and
performer rubs off with cloth to prove it is chalk.
The method is just opposite the regulation way. Instead of
a flap being removed, one is added. It is on your table
with message side down and receiving slates back, performer
rubs off with dry cloth, and lays first slate over flap.
Rubs off other and picking one from table with flap
underneath places them together, letting flap fall to lower
slate and message side in. Now take them apart again as an
afterthought and again show all sides empty. Place together
and in laying on stand turn them over so flap drops back to
original slate writing out. When opening hold flap tight to
slate with finger and show and then rub out with cloth and
drop flap side down on table, other state on top. If you
want to hand for examination then, you can do so, but not
necessary.