Watch List notes:

Valerian I (253-260). AE Sestertius, Rome mint. IMP C P LIC VALERIANVS AVG. Laureate and cuirassed bust right. / CONCORDIA EXERC[IT] SC. Concordia standing left, holding patera and double corcucopiae. RIC V 209; C. 132. AE. 18.40 g. 28.00 mm. A superb masterly engraved portrait. Dark green patina. Good VF.