Friday, January 12, 2018

Double H's

One red and two white

Two red and one white

More underground infrastructure markings, this time H's, both at the same location  In the first instance, the red has one dot while the white has two.  That is reversed in the second one, with the red being marked over the white.

Other examples can be seen here and here.

1 comment:

  1. I wish there was a dictionary / translator for those.