One of a series of easy to find (the puzzle ones may not be easy to solve) caches. This one is a simple Multi.
On the back of the sign is an address. A= the house number BCDEFGHIJ is the road name. Treat numbers as numbers and letters as numbers using a=1 to z=6.
The cache may be found at N 51 17.(I)(D+E+J-F)(D+F-E-J), W 0 37.(C)(G)(B-A).