Watch List notes:

The Byzantine Empire

Constantine V Copronymus, 741 – 775 and Leo IV from 751. Solidus, Rome 764-765, billon 3.61 g. DNO CONS – TANTI Crowned facing bust of Constantine V, holding globus gruciger and akakia. Rev. DNO LЄ – O PPA MUL Crowned facing bust of Leo III, holding globus cruciger and akakia; in r. field, Γ. DO 30. Sear 1570. RP 137 (unique).
Exceedingly rare and an extremely important issue from the mint of Rome.
Very fine