![Couple discover a broken double plug socket in their house is actually a secret SAFE | Daily Mail Online Couple discover a broken double plug socket in their house is actually a secret SAFE | Daily Mail Online](https://i.dailymail.co.uk/1s/2019/11/19/11/21195840-0-image-a-145_1574161418788.jpg)
Couple discover a broken double plug socket in their house is actually a secret SAFE | Daily Mail Online
![European Travel Plug Adapter for Europe & UK, American to Ireland Italy France Spain Greece Germany Israel Travel Essentials, International Power Outlet USB Charger, US to EU UK Travel Accessories - Amazon.com European Travel Plug Adapter for Europe & UK, American to Ireland Italy France Spain Greece Germany Israel Travel Essentials, International Power Outlet USB Charger, US to EU UK Travel Accessories - Amazon.com](https://m.media-amazon.com/images/I/51uWR9kLjyL._AC_UF894,1000_QL80_.jpg)
European Travel Plug Adapter for Europe & UK, American to Ireland Italy France Spain Greece Germany Israel Travel Essentials, International Power Outlet USB Charger, US to EU UK Travel Accessories - Amazon.com
![Old 'round pin' electrical / electricity socket (left) for lights / lamps, and modern sockets for square 3 pin plug / plugs. UK Stock Photo - Alamy Old 'round pin' electrical / electricity socket (left) for lights / lamps, and modern sockets for square 3 pin plug / plugs. UK Stock Photo - Alamy](https://c8.alamy.com/comp/D1NT9K/old-round-pin-electrical-electricity-socket-left-for-lights-lamps-D1NT9K.jpg)