01 Henry Roberts, Lancaster, His Allarums.. London, not dated, c1600.

02 Nathaniel Nye, The Art of Gunnery, 1648- the engraved portrait is by Wensleslas Hollar and shows the author aged 20 in 1644. It is rare to have such an acute psychological portrait as a titlepage. Authors are usually shown as demi-gods, even today.

Blondel, The Art of Throwing Bombs 1683

L.Pimentel, Methodico Lusitanico Lisbon 1680