Jacob's
ladder
is
a
very
old
toy
-
Highland
Games
sell
a
modern
magnetic
version
as
the
Foldaway
Finger
Flipper.
Instructions
on
how
to
make
a
Jacob's
ladder
may
be
found
in
the
familyfun.com
archives
and
at
woocrafts.com.
A
simpler
design
requires
split
blocks
but
the
tapes
are
continuous.
While
not
quite
so
ancient,
you
can
find
books
on
building
your
own
metalworking
tools
(any
many
other
handcrafts)
at
Plough
Book
Sales
[VIC,
Australia]
and
Lindsay's
Technical
Books
[IL,
USA]
Esmerelda
Jones'
"Ancient
Knitting"
pages
are
defunct
[http://suite101.com/welcome.cfm/ancient_knitting/],
but
her
modern
knitting
pages
are
archived
at
suite101,
including
the
Medieval
Robe
To
Knit
The
Yahoo
group
HistoricKnit
has
archived
messages
on
historical
knitting
techniques,
emphasising
the
pre-1600
period.