'Nothing has made me more uneasy in this country, than the finding myself incapable of serving my Ld Pembroke, as I hop’d & expected to have done. I have neglected no opportunity of buying what medalls presented here, & have writ to all ye places where I cou’d fix any corrispondence in order to procure them, and yet after above two years search have met but wth two of his note. Dr Picenini who is gone for England by way of Leghorn will wait upon you, & justify what I write. He is in company with Mr Purnell a Gentn of this factory, who will be glad to wait on my Ld & shew him what medalls he has pick’d up here in about 20 years. I have seen them & cannot guess they are worth in any part of Europe ye quarter they cost here. I can’t pretend any skill my self, but I have by me most of ye books necessary for ye understanding them. Merchts have ye same notion of them, yt ye Turks have, yt they are all jewellery.' (London, British Library, Sloane MS 4040, ff.187-8; Burnett 2020b, p. 611)