[Software] (Apologies for not having spotted your last posting.) No.
[Inkspot] I must confess I had some misgivings as to the quality of my response to your question. Boolbar's 3rd question was "Is there only one of this item? The strict answer to that question would be "Yes", but, it is alleged, there is at least one copy and there is some controversy as to which, if any, is the "real" one. The English, the Scots and the Irish all believe that they have the "one true stone". Given the rules of the game, I thought that my answer would be allowable. Turning to your question, "Is is presently located in only one country?", I considered that, given the (disputed) existence of at least one (alleged) fake, the same answer could be given. The strict answer to your question would, of course, have been "Yes" on the basis that the real one, to the extent that it even exists, could only be located in one country. I trust you will forgive me.
[Boolbar, again] No.
[Raak]
YES! The answer is, indeed, the fabled
Stone of Scone.
*Shouts of "Och, Aye!", "Hoots!" and "Nac Mac Feegle!" from the audience.*
The stone belongs under a Chair, which now passes to Raak, with compliments.