Charcoal, I'll leave it up to you but there's a striking similarity between your #12 #13 #14 and my #11 . If you agree, please kindly withdraw your entries.
An "S" icon to reinforce the name 'surebett' - in the fom of a stencil, commonly used in printing onto concrete. The "C", as in "Concreting", appears withing the "C", in blue.
charcoal, Tryed to get a last minute submission in on this one. Im sure mine isnt going anywhere but after submitting I notices you had one with concrete forming an "S" as mine, take a look and if you think its to close in I dont have a prob pulling it.... Just a heads up! Later, Pat