Anthemius, AV Semissis, Constantinople.

DN ANTHEMIVS PF AVG, pearl diademed, draped, cuirassed bust right.
SALVS REIPVBLICAE, chi-rho within wreath.
Mintmark: COMOB.

RIC 2837; LAC 110. Extremely rare (R5).

Used with permission of CNG (cngcoins.com), Sold for $2,000.