The Cache is not at the above coordinates
This is a simple one stage offset multi,leading you to a nano.
There is only a log and no room for swaps,TBs etc and you will need to bring your own writing implement.
The Coordinates will lead you to a location where you can obtain some information .
What street are you on? = GGS1
Who designed the building in front of you? =GGS2
On your source of information is a date = ABCD
The coordinates for the nano are
N 53'48.XYZ
W 001'33.LMN
Where X=D-(A+B), Y=B, Z=B-C
L=A, M=C-A, N=C
When you have found the nano,for extra Brownie points e-mail me the name of the designer of the original models of the object it was attached to(referred to in the hint)
This name is GGS3
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