I saw one in the guard rom of a mediaeval castle. Does that count?
Chubb made a series of 1, 2 or 3 brick sized wallsafes for many years. I don’t know when they started but it was long before my time. There was a company making the unimaginatively called “1 Brick Wall Safe”. The ones I have seen were very low quality.
The Chubb ones weren’t bad but the fixings were poor. They were also very expensive for what they were. They also produced a better model with a bolt throwing knob.
Optional extras were a second lock on the larger sizes. That was for dual control although it would also increase the security. Also they did one with a slot in it designed for an alms box in a church or similar applications. One of their leaflets used to claim that one of these had survived an attack. The church found the end of a cold chisel or someting similar inside the box. It had snapped off during the attack. So whoever had installed that one had done the job right!