'Old Mr Obadiah Walker has lately publish’d a little book in 8vo intitul’d ‘The Greek and Roman History illustrated by coins and meddals, etc.,’ which, I am well assur’d you will think very well worthy of your perusal. There is not (perhaps) a nimbler man in England at explaining of the Greek and Roman coins than this old gentleman; and he has in this small piece reveal’d a great deal of his skill.' (Thoresby 1912, pp. 24-5; Burnett 2020b, p. 824)