Justinian II AE follis, Constantinople, dated regnal year 20, AD 705-711. 

Bust of Justinian II facing, with short beard, wearing crown,
ornamented with cross, and loros, holding cross potent on steps in his right hand and patriarchal cross in his left. 
Large M, ANNO to left, cross above, date XX to right, RG (R retrograde) below.

Mintmark CON. 

Sear Byz 1427 var (officina); DOC 11b-c var; MIB 42b (ditto). Very rare.

Contributed by Ed Anderson, Oct. 2023.
ex Sol Numismatik, auction XVIII, lot 591, Sept. 2023.