David Chapman wrote:
My son has just moved into a new (old) house and found a (locked)
SUPRA key-safe attached to the side wall. This is the grey-box type
that has two vertical rows of five mechanical push buttons (numbered
1 to 10) on it along with OPEN and CLOSE sliders.
It's absolutely no use to him locked so he'd like to be able to open
it or, if that is not possible, just to remove it from the wall
without seriously damaging the brickwork to which it is attached. The
previous owner of the house died so it's not possible to ask her the
key combination.

Apart from the 'brutality with extreme prejudice' approach with a
very large hammer, can anyone suggest a better way to open or remove
it? Can anyone explain how this particular SUPRA key-safe is
normally opened when the correct code is known? How many digits need
to be entered, and how should the sliders be used? Is there a User
Manual for it?
I suppose he could try entering all of the combinations one after the
other but I doubt that he's got the patience in view of all of the
other jobs that need to be done.

Many TIA - Dave

Dave,

A suggestion. We used one of then when my disabled father was alive to
allow the social services/cleaners access to his property - it may be worth
your while contacting them as this could be the case here - or possibly his
neighbours.

As a matter of interest, if as suggested by Andrew, you decide to cut it off
the wall, the steel in my father's old box tapers from around an 1/8" at the
'door' end to a 1/4" at the 'wall' end with a 1/4" base thickness (I've just
checked it to see if there was an engineers code there [there's not] and the
number of different combinations of numbers is quite large)

Tanner-'op