Abstract: A portable mini-safe for mounting on a surface includes a base plate (30) having a central dish-shaped portion forming a recess (33), fastener holes (35), and a peripheral turned up rim (31), a part spherical hollow cylindrical safe body (32) for receiving goods to be stored, a base plate (11) on the safe body having a central recess portion and a peripheral ring element (13) of resilient material for engaging against the mounting plate when installed with the peripheral edge of the safe body engaged within the upturned rim (31) of the mounting plate. A dome shaped cover (1) engages over the open end of the safe body and has peripheral tabs (3) engageable in bayonet slots (7, 3) when the cover is installed. The rotatable camming element (23) is mounted within the safe body for drawing the base plate and mounting plate together for installing the safe on a surface.