1887 $3 PR45 NGC. Only 160 proof 1887 three dollar gold pieces were minted in 1887. Curiously, examples are known with the obverse and reverse dies oriented in four different variations. The present coin is oriented in medal fashion, with the obverse and reverse dies aligned in parallel. The present coin shows only light wear on the design elements, and much of the reflective proof surface remains in sheltered areas around the devices.
Super interesting to see a proof grade under a 50, and pretty funky to see a proof that ended up with medal alignment by mistake, I assumed the proofs got a little extra attention. And on a piece less common like a $3? Definitely surprised