Another cache in what is rapidly becoming a National Numbered Series of Letterbox Hybrid caches, placed to mark one of a diminishing number of post boxes placed in Queen Victoria’s reign and still in use for regular collections by Royal Mail.
The rubber stamp and ink pad in the cache are NOT trade items, and must remain in the cache!
A few simple guidelines will apply to the series (subject to amendment):
- The post box must carry the Royal Cipher of Queen Victoria (in whatever format)
- The box must have regular collections by Royal Mail
- The box must be in the British Isles (so United Kingdom and adjoining Crown Dependencies).
- Any style or colour of box are valid as long as the above all apply
This is the 1st Cache in this series to be hidden in Wales.

The cache is not at the published co-ords, but you will need to visit there to obtain some values.
The Cache is at, N51 39.ABC W003 54.DEF. Where,
A = 8th number of date
B = 7th number of date
C = 2nd number of date - 1st number of date
D = 2nd number of date - (1st number + 5th number of date)
E = 4th number of date + 7th number of date
F= last but one number + last number of date
Please note, due to the recent poor weather the walk to the hide location is very wet/squelchy/muddy, perhaps wellies or walking boots might be in order but we did it in walking shoes.
If you know of an eligible post box and would like to add to this series, please apply to Team Hippo for a series number, giving the following:
- Location as in place name (and street if applicable)
- Location in Lat Long format (DD MM.MMM)
- Postbox number
Please note that featured post boxes should comply with the guidelines above. Caches should be Letterbox Hybrid type (and therefore contain a LB stamp), whether placed at the published co-ords, or a simple offset multi, or multi-stage multi, or more of a puzzle style format.