Hamburg 1887-J 20 mark
This specimen was lot 50115 in Ponterio sale 168 (Philadelphia, August 2012), where it sold for $395. The catalog description noted, "GERMANY. Hamburg. 20 Mark, 1887-J. NGC XF-45." This type was struck 1875-89 and is among the more common twenty mark of the Second Empire.
Recorded mintage: 251,000 (a slightly better date).
Specification: 7.96 g, .900 fine gold, .230 troy oz AGW.
Catalog reference: Fr-3776; KM-289.
- Cuhaj, George S., and Thomas Michael, Standard Catalog of World Coins, 1801-1900, 7th ed., Iola, WI: Krause Publications, 2012.
- Friedberg, Arthur L. and Ira S. Friedberg, Gold Coins of the World, From Ancient Times to the Present, 7th ed., Clifton, NJ: Coin and Currency Institute, 2003.
- Ponterio, Richard, Ponterio sale 168: The Official ANA Auction, Irvine, CA: Stack's Bowers LLC, 2012.