Report on a comparison of Mint avoirdupois with Mint and Exchequer troy weights

<134r>

The 29th. April 1724.

Honoured Sir

This morning early I went up into the Mint office of Receipt, & finding Mr. Fauquier had up the 1lwt averdupois, I was oblige to compare the 7lwt. averdupois with an Exact ballance of Troy weights. The scales & one sett of the Troyweights have been lately adjusted, but the other sett of weight remaining uncorrected, & there appearing about 6gr. difference between those 2 setts of Troy weights, I therefore compard the 7lwt Averdupois with both the foremention'd Setts of Troy weights, & also with the Troy Standard weights in the Exchequer & the Account stands thus.

lwt			lwt	oz.	dwt	gr
7.	averdupois	=	8.	6.	0.	18.	Troy at the Tower — Corrected, &c
7.	Ditto....	=	8.	6.	1.	0.	Troy at the Tower — Vncorrected.
7.	Ditto.....	=	8.	6.	2.	6.	Troy at the Exchequer — Standard

Consequently

lwt			lwt	oz	dwt	gr
1—	averdupois	=	1.	2.	11.	13.	fere at the Tower Corrected.
1.	Ditto....	=	1.	2.	11.	13.$\frac{\mathrm{5}}{\mathrm{7}}$.	Troy at the Tower Vncorrected.
1.	Ditto.....	=	1.	2.	11.	18.	Troy at the Exchequer.

I am Sir

Your most obedient & most Humble Servant

H. Haynes

[1]