Watch List notes:

Quintillus. AD 270. Antoninianus (20mm, 3.18 g, 12h). Rome mint, 11th officina. Radiate, draped, and cuirassed bust right / Securitas standing left, legs crossed and leaning on column, holding scepter; XI. RIC V 31. Good VF, glossy dark green-brown surfaces, area of slight roughness, softly struck on the reverse.

Ex Douglas O. Rosenberg Collection (Classical Numismatic Group 72, 14 June 2006), lot 1712.