1825 Roman 1 Shilling. Is it 1 over inverted 1?

[argentumandcoins 70]

I recently found one of the above in a bulk lot from auction. It's only Fair but the first one that I have had in stock. Having had a good look under the glass I am wondering if ESC et al have (and continue to) incorrectly assumed what the coin actually is? The first bust Shilling uses an Arabic 1 so where did the Roman 1 appear from? Apologies if already established but I cannot find any reference ont tinternet to it.

 

 

[Rob 3,176]

I have always thought it was 1 over inverted 1. From your picture it looks as if the first 2 digits have been re-entered which would be consistent with an Arabic 1.

[argentumandcoins 70]

The 1 looks Roman in hand but holding it on an angle you can clearly see it's an inverted Arabic 1. The inverted 1 stands proud so was presumably punched first as it is deeper in the die.