30-nummi coin of Thessalonica mint?

[Byzantofil]

A have a strong suspicion that this is Heraclius and Heraclius Constantine 30-nummi coin of Thessalonica mint (Sear 827, MIB 224, Ratto 1431).
It seems that only the letter E remained from the ΘEC Mintmark, because it fell on the on the protruding part of the old host coin, exactly, on the Heraclius Constantine head.

[Byzantofil]

It's not obvious, but it looks like it. For comparison, I put an original coin below. What do you think?

[vercingetorix]

I think you're correct about the mint attribution. I don't know what else it could be, given the  in the center under the exergue line.