The cache is not at the co-ordinates above but this may provide a nice starting point.
Added simplified puzzle in hints as one of the TBs appears to have gone missing. The 4 TBs have not really stayed around the area or in the wild which may have contributed to the low number of finds. An over ambitious idea I'm afraid. Will pull the remaining TBs back home to recycle and leave with simple puzzle or convert to a traditional cache for all to enjoy.
Four stones are rolling around from cache to cache hopefully within a 5 mile radius of Wokingham, Berkshire.
Please do not place them in this cache for obvious reasons.
Travel Bug links
Mick
Keith
Ronnie
Charlie
Track down Mick, Keith, Ronnie, and Charlie and use the numbers printed on their travel bug tags to find the cache.
(Note: It is NOT a requirement to find all 4 TBs before logging a find. Someone has already worked out that you can make a very close guess with just the info from 1 TB, and I'm sure with the right two you can get it spot on.)
The cache location is N51 AB.CDE W000 FG.HIJ
A = Keith's number
B = Ronnie's number halved
CD = Both Charlie's numbers in the order they appear
E = Ronnie's number
F = Mick's middle number
G = Mick's first number divided by 3
H = Mick's last number minus Keith's number
IJ = Charlie's first plus his second plus Ronnie's minus Keith's
You can check your answers for this puzzle on Geochecker.com.
The container is a 0.9 litre small clip and close plastic box, clearly marked with the usual green and black official geocache sticker.
Initial contents were:-
logbook and clutch pencil
lanyard
mini-torch
sliding puzzle