Watch List notes:

Constantine IX Monomachus. 1042-1055. AV Histamenon Nomisma (27.5mm, 4.43 g, 6h). Constantinople mint. Struck 1049-1053. + IhC XIC RЄX RЄGNΛNTIhm (sic), facing bust of Christ Pantokrator; upturned crescent in upper two quarters of nimbus / + CωhS τ AτhI hOS BAS Rm, crowned facing bust of Constantine, holding long cross and globus cruciger. DOC 3; Füeg II 3.A; SB 1830. Minor die rust, slight ghosting in obverse field. EF.

From the Peter J. Merani Collection. Ex Berk BBS 137 (31 March 2004), lot 33.