Now the king, we must remember, was newly widowed. The seal had been a gift from his wife Queen Caroline and bore his initials GG for George Guelph, not George II.  In essence, it was one of the few things that truly belonged to George the man, quite apart from the sentimental value.

So the stranger struck a bargain with him.  At the same hour the next day, he would return to the same place and give the king’s seal back to him. The king said he would bring a hundred guineas in exchange and promised not to summon assistance. 

They parted cordially.

The next day the king appeared alone at the appointed time. The stranger greeted him and the exchange was made.  Each wished good health to the other.For the rest of his days, the king enjoyed telling the tale to his friends in his drawing room at Kensington Palace, where he would point out the spot from the window.

This is one of several versions of this story but is the one I like and believe to be the truest!