Lucio Fontana was a sculptor and painter (1899-1968).
This horse sculpture blows my mind. He's known as the father of Spatialism.
Fontana by Ugo Mulas, 1964
"From 1958 on he started the so-called slash series, consisting in holes or slashes on the painting surface, drawing a sign of what he named "an art for the Space Age"." (wikipedia)
I swear that SAM has one in their collection but I couldn't find it on-line.