1880/70 Overdate Sovereign Varities

[Exbrit]

I have a 1880/70 overrate Sovereign (London) that is not listed in the Spink's Coins of England as a known variety and was not in either the Quartermaster or Bentley collections. I believe that it may be the Marsh #91A, but Marsh does not describe the variety fully - so I cannot be sure if it is the 91A or not.

I also talked to someone recently that advised he has almost 20 varieties of the 1880/70. He was selling one on Ebay - so I take his statement with a grain of salt. Spinks lists three varieties. The Bentley collection had a varity that was also not listed in Spinks for the 1880/70. The Bentley sovereign would normally be listed as variety A in Spinks - but they do not include variety A for the 1880/70.

My variety has the buried W.W. on the narrow truncation on the obverse, a long tail and no B.P. on the reverse.

If you have any information on this variety or have other not listed 1880/70 varieties - I'd appreciate your sharing it.