In article ,
Brian Sharrock wrote:

"Tony Williams" wrote
When I worked at Ferranti in Bracknell, (before
STD), one of the lunchtime competitions was to
do exactly that.......

Omigod! Was this 'game' introduced to Bracknell by an expatriate
Scouse who'd worked at ATE ? We played it too ... then came
Crossbar.

I don't know where it came from. Such things would
be all the rage for a few months, then off onto
something else.

--
Tony Williams.