[See Rising Sun Engine and Princess Royal ]

1838  Lydney and Forest of Dean Coal Company, prospectus
The company is about to be formed with a view to bringing into full production a large and valuable coal property, situated in the Forest of Dean, close to the mainline of the Severn & Wye Railway.
The property has been selected by a Gentleman of much local knowledge with great judgement, and has been reported upon by three Mineral Surveyors of eminence, and in part by a Gentleman thoroughly conversant with such property, though not a proffesional surveyor and they all concur in pronouncing it of great value and unusual capability.  The Gentlemen to whom it belongs have brought it to its present state by a considerable outlay, but with capital insufficient to do justice, in any degree, to its capabilities.
The report alluded to having satisfied them that by an extension of Capital a very profitable result is certain, they have determined to offer it to a body of Shareholders at a moderate price (say £100,000) taking a large portion of that amount in Shares, in proof of their opinion of the property & their unwillingness to part with more than sufficient to make it yield all that it is capable of.  Full particulars are set forth in the annexed statement.....
...A colliery called ‘Arthur’s Folly’ or Speedwell; held subject to a small gale rent of £20 per annum.  This colliery by the outlay of £3,000 or £4,000 would become very productive and valuable and might be extended to the Iron Ore...

1841  James Morrell and Robert Morrell, bankers of Oxford, as mortgagees in possession to Arthur’s Folly or Speedwell.
Formed part of Rising Sun Engine.

17 September 1877  Forfeited.