Letter Boxes, Shum Shui Po, Kowloon / Hong Kong

Product
Letter Boxes, Shum Shui Po, Kowloon/Hong Kong (with Laurence's signature)
信箱, 深水埗, 九龍/香港

Time & location
Shum Shui Po, Kowloon/Hong Kong 

Artist
Mr. Laurence Lai

Camera
Nikon F5 + 24-70mm f2.8 lens

What's special / the story behind