'There are here in the possion of one Mr Duff a Scots merchant a series of 284 Gold medals Greec and Roman, some of each sort very valuable. they were Colected by one Zane a noble venetian above a hundred years ago. Mr Duff had no other view in buying them but as merchandise to Dispose of. I am no Connoisseur myself but have asked the opinion of severals that are and all agree that there are a great many valuable medals among them and that no shuch collection is to be met with at present. a list of them was sent over to Mr Miller merchant in London to be shown to Mr Dalton in ordre to informe His Royal highness of it and that same list is now in the hands of Mr Adams the architect in Grosvenor Street where your lop may send for it incognito because, in case his R.H. has a mind to for them, it will perhaps raise their price if it be known. by the list you will be a better judge of the value of them then by any thing I can writer. I shal only add that the whole Collection is much more numberous as there are a great many Duplicats of the same medal. all thes Duplicats of the valuable medals may be had or not as the purcher please. there is a brutus among them \for/ which the connoiseurs at room say the owner may aske what he pleases as they do not know of another Gold one. the Series of has been valued in that Capital at 1900 zechines and I belive may be had at present a little cheaper as merchants value money more than antiquitys. if you send me any commands about them they shal be execute le moins mal que je puis.
...
Venis the 15th 7ber 1760.
[Annotated in a different hand:] Gen. Graham. Septr 15th/1760'
(Russell 2004, p. 36; Burnett 2020b, pp. 1076-7)