Information from the Getty AAT
spring needles
Fine steel needles that have a butt at one end and a long flexible hook at the other that curves back to the shank of the needle.
History of technique in the arts, 1500-1950
History of technique in the arts, 1500-1950
Fine steel needles that have a butt at one end and a long flexible hook at the other that curves back to the shank of the needle.