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Modern Magic: A Practical Treatise on the Art of Conjuring
·
Professor Hoffmann
300
The
instrument
now
used
for
the
same
purpose
is
known
as
the
French
changing-plate,
and
may
be
described
as
a
combination
of
the
vanishing
salver
(page
209)
and
the
multiplying
money-plate
(page
177).
It
is
round,
and
has
beneath
it
a
flat
tube
similar
to
that
of
the
multiplying
plate;
and
it
is
in
this
tube
that
the
substitute
coins
are
placed.
The
upper
surface
of
the
plate
is
similar
in
appearance
to
that
of
the
vanishing
plate;
but
in
this
case
the
centre
portion
is
divided
across
the
middle,
and
one
half
only
is
moveable,
sinking
downwards
to
the
depth
of
a
quarter
of
an
inch
all
along
the
dividing
line,
whenever
pressure
is
applied
to
a
particular
portion
of
the
under
surface
of
the
plate.
The
coins
to
be
changed
are
received
by
the
operator
on
this
moveable
portion,
and
immediately
handed
to
some
person
to
hold,
the
performer
sloping
the
plate,
and
(apparently)
pouring
the
coins
into
the
hands
or
hat
held
out
to
receive
them.
In
reality,
in
the
act
of
sloping
the
plate,
he
depresses
the
moveable
portion
of
the
surface,
and,
as
a
natural
consequence,
the
coins,
instead
of
sliding,
as
they
appear
to
do,
right
off
the
plate,
slip
between
the
upper
and
under
surface,
while
the
substitutes
fall
from
the
tube
below
into
the
hands
of
the
person
who
is
to
take
charge
of
them.
The
whole
movement
is
so
rapid,
and
the
fall
of
the
substituted
coins
coincides
so
exactly
with
the
disappearance
of
the
genuine
ones,
that
the
eye
is
completely
deceived.
The
tray,
having
apparently
served
its
purpose,
is
carried
off
by
the
magician
or
his
servant,
with
ample
opportunity
to
make
any
necessary
disposition
of
the
genuine
coins.
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