Plumbago
The old-fashioned term for graphite when used for making pencils, originating from the Latin word for 'lead'.
OF 1
Isaac Barrow
by David Loggan
1676
NPG 1876
John Locke
by Sylvester Brounower
circa 1685
NPG 4061
Edmund Waller
by David Loggan
1685
NPG 4494
Sir Thomas Browne
after Robert White
late 17th century
NPG 1969
OF 1
