In message
,
Tim+ writes
They are labelled Plato Model 170 shears. I seem to remember that my
ebay supplier charged something like £2 with free postage. Today I can't
see any on ebay at that price, but at least a couple of "UK" suppliers
are under a fiver.

Odd. On your recommendation I just ordered a pair from China (via eBay)
for £1.89 (inc postage).

I'd be really interested in what you think of them when they arrive and
you have stress tested them.
I just hope that mine weren't the one good pair.
--
Bill