Its a hard metal to work with! It was fun to engrave though. I had to smooth the part by the nose (in the photo its not smoothed) - I had to use a machinist stone which really did a great job.
I think its more of a token- its made by the space center of titanium that's been in space. Not a lot of titanium coins to choose from. This is the biggest one I found- its larger then a Morgan dollar.
I do a lot of space themes for the coins I carve. I am doing an Alien from the 1986 movie next. After that its Star Wars hobo nickels.