"This work presents a range of these drawn from two sources: "Hobsons horse load of letters" by Gervase Markham 1613 edition and Michael Dalton's "Country justice" 5th edition from 1635"--Page 2.
Early seventeenth century sample letters and forms by Robert Morris. ISBN 9781858042510. Published by Stuart Press in 2011. Publication and catalogue information, links to buy online and reader comments.