It is a business strike coin with a fineness of 0.9167, containing 1/10 oz of gold. Produced by the U. Mint, this coin is a valuable addition to any collection of gold bullion coins. Certified by NGC, it guarantees the authenticity and quality of this rare and sought-after piece. Popular mint error with W 1/10 oz Gold Eagle Signed by Mike Castle Graded NGC MS69 one of the coolest errors found within the gold eagle series ever popular. You will receive the coin pictured. Thank you for viewing, check out our store for more listings.