On 06/03/2019 18:46, Alan J. Wylie wrote:

I found this sliding patio door lock fitted on the house I've just
bought.

https://rfvt.org.uk/tmp/apprentice.jpg

Brilliant!

If you own a striped jersey and a balaclava and fancy earning a bit of
cash with a night-time job, perhaps you could ask the double-glazing
company where else they've fitted these patio doors?

Nick