Constantine I SOLI from London with engraving modification

[Victor]

This coin has S-P across the reverse fields; but the P has what looks like it may have been an F. The S-F series was before this one. Maybe the engraver just made a slight modification to the die so that he could keep using it. So technically, this coin is RIC VII London 46/56 



Constantine I
A.D. 314
Ӕ nummus   19x21mm     2.7g
CONSTANTINVS P AVG; laureate and cuirassed bust right.
SOLI INVICTO COMITI; Sol rad., stg. l., raising r. hand, globe in l., chlamys across l. shoulder; across fields S-P.
in ex. MLN
RIC VII London 56; LMCC 8.06.010 

[Lech Stępniewski]

I don't understand your reasoning, Victor. For me this coin is simply RIC VII LONDON 46. F in S|F is perfectly clear.

[Victor]

I can't make anyone see what I see; but there is clearly a P over the F

[Lech Stępniewski]

The long top line is impossible if P was intended. I agree that engraver could made a mistake and tried to correct it. For example, the serif of the bottom line was put carelessly etc. But it is clear that finally he wanted to make F, not P.

[Victor]

What I said was that it was indeed originally an F; then the engraver changed it for the S-P issue.