1988 fifty dollar gold 1 oz coin worth?

This is a gold bullion coin. It was designed by Augustus Saint-Gaudens (obverse or front) and Miley Busiek (reverse or back), weighs 33.931 grams, has a diameter of 32.7 millimeters, and is composed of .9167 gold, .03 silver, and .533 copper. 465,000 were made with no mint mark and 87,133 with a W mint mark.

With no mint mark; $975 in uncirculated condition. No proofs known.

With a W mint mark; $1,100 if proof.

No circulated specimens known.