Error coin 10 piso bsp series, please comment, what kind of error is this. Tnxs

Welcome to Numista. Please state exactly what you see as an error.

I think it's a planchet or mintage error, about the face in center. The face has been erase, not printed exactly.

I can't say for certain but this could be explained as a “grease filled die error” where during minting, grease gets in the way of a proper strike  on the planchet.

https://www.error-ref.com/struck-through-smooth-viscous-material-grease-oil/

Mr.harryg, thank you, so much for the information you give, such a big help for me. I have only a little idea in category of error coin. Again thank you so much. By the I'm newbie one, and I don't exactly know how to post the coin for sale. Can you please help me? Sorry for bothering you …

You are welcome. Numista is a great place to learn, discuss, and trade with other members but unfortunately, no sales are allowed here.  These types of errors do not really add much additional value regardless so you may just want to keep it as a curiosity piece.

N#4519