Slowly, Fernando,
All my judging was done on the basis of some very poor 10 kB images.
I just noted what seems to be a series of punched quite modern A's on the side towards the muzzle. We must not forget that all the early forms were repeated in the Historismus period of the second half of the 19th century - and what if this is not wrought iron but 19th c. cast iron?
Always be careful, especially with poor images.
Michael