[1] Elstracke's first known pieces come from a translation of Jan Huyghen van Linschoten's Voyages into ye Easte and West Indies published in 1598.
[3] "By this time, however, his work was rapidly becoming outdated, as the recently arrived Simon de Passe and Francis Delaram had introduced new patterns and styles from abroad (Griffiths 2004)."
[3] One of the rarest of Elstracke's engravings, and the most highly prized by collectors during the 19th century, is the double whole-length portrait of Mary Queen of Scots and Henry, Lord Darnley; an impression of this was sold in 1824 in the collection of Sir Mark Sykes for £81 18/-.
[3] Among other rare engravings by Elstracke were similar portraits of Frederick V, Elector Palatine, and Princess Elizabeth (Dent sale, £23.
), and James I of England and Anne of Denmark (Dent sale, £65) A portrait of Sir Richard Whittington was first engraved by Elstracke with the hand resting on a skull, which was subsequently altered to a cat; in its original state it is extremely rare.