File Under Portals, vol. 2 (postboxes, milk delivery, phones etc)

Post boxes & milk boxes – mysterious doors and other wormholes to places in time, observed on a stroll in Okayama city

Postboxes, spotted in the wilds of Kojima, Okayama, Japan (Ryoko also)

Devices. ideal for lonely time travelers and occasional ramblers.  

Whatcha think?