1910 One Penny Error ?

Not a mint error, an altered coin.

Hello and welcome to the forum.

Sadly, I can confirm that what you have is not a mint error. Your coin came out of the mint looking like a perfectly ordinary 1910 penny. Sometime afterwards, this damage was done to it.

This effect was produced by stacking three perfectly normal coins on top of each other, then squeezing them together in a vice-like apparatus or perhaps by being placed under a heavy piece of furniture or machinery for many years. The designs of the two outer coins have impressed themselves onto the middle one (and probably vice-versa, too). This was the middle coin. The obverse (bottom pic) has had the obverse of a smaller coin of Edward VII (such as a halfpenny) squeezed into it. The reverse (top pic) had the obverse of another penny squeezed into it. I should point out that this second penny was of George V, not the same king that appears on the obverse; George V did not appear on coins until 1911.