XVI coins were one of the first subsets of RR denarii I pursued. I picked up #4 in 2016 and am still waiting on #5. I think all of us here would like #6.
L. Iulius, 141 BC, Obv - Roma right, behind XVI, Rev Dioscuri galloping, below L.IVLI; Cr 224 - two of these
C. Titinius, 141 BC, Obv - Roma to right, XVI behind; Rev - Diana in biga right, C•TITINI, ROMA below. Cr 226
M. Aufidius Rusticus, 140 BC, Obv - Roma right; RVS below chin; XVI behind; Jupiter in quadriga, M•AVF below; ROMA in exergue. Cr 227
C. Valerius Flaccus, 140 BC, Obv - Roma to right, behind, XVI; Rev. Victory in biga, above - FLAC, below - C.VAL.C.F; in exergue, ROMA; Cr 228
this coin is from Jean Elsen & ses Fils S.A. auction 135, #115 - L. Atilius Nomentanus, 141 BC, Obv - Roma r.; behind, XVI; Rev. Victory biga r, below, L·ATILI and in exergue, NOM; Cr 225
this one is not in Crawford! - Monnaies d’Antan; Mail Bid Sale N°17; LOT 238; May 22, 2015 Cn. Gellius, 138 BC, Obv - Roma to right, behind, XVI; all within laurel wreath; Rev. Mars in quadriga, below CN.GEL, in exergue, ROMA; Cr. 232