Yes, I stand corrected. The top coin (may the reverse of the second coin) appears to be a 'nummus'; a pre-reform copper coin from the period 491-498; during the reign of Anastasius I as shown on page 37 of David Sear's book entitled 'Byzantine Coins and their Values' (2010 reprinted edition)
At that time, Sear valued the coin at 15 pounds sterling in F and 35 pounds sterling on VF. IF the second coin is the reverse of the first coin, it shows the bust of Anastasius. A second choice, with the same design, would be a copper 'follis' of 23-27 mm. If so, the date range would be 498-518.
Thanks 'nhbenz'
Don.......