At the given co-ords you will find a Royal Mail Lamp Box.
You will need the following information on this box to find this Letterbox Geocache:
- The time of the last weekday collection is A.00am
- The time of the last Saturday collection is B.00am
- The latest collection in the area is made at C.D0pm
- from Wantage Post Office, EF Wallingford Street
The cache can be found at a bearing of (F/2)(C+E).(D)(A-E)° at a distance of (A-B)(F-C)(B+E).(F-E)(F-C) meters
The checksum for the 9 digits in the above projection is 40