NGC certified this coin as authentic for me last year https://www.ngccoin.com/certlookup/2898143-003/50/ I believe that it is similar to N#341504
I went to sell it, and an interested party referenced these articles and said that he thinks it’s a replica (noting the “xx4x” from the article)
https://coins.lakdiva.org.lk/portug/1636_AM_DM_TA_F3_xera_ag.html and 1633 - 1640 - Portuguese Malacca - Replica - Xerafim TA - D M (lakdiva.org.lk)
"The 1635 replica in addition to a wrong style, is larger and thinner and nuch heavier weight to the legal weight. The next two are very amusing since they have been replicated with dates x63x and xx4x exactly as described in the Colombo Museum catalog, which used x to indicate an illegible digit. Since the coin referred to is also illustrated there is no ambiguity that the real coin does not have x63x. Catalog #78 is described as xx4x but that is not illustrated. I am told that coins with x63x and xx4x have sold in leading Auctions, which just indicates to me that some who should be experts are sometimes misled even by stupid reproductions. The replicas shown above are more than 30 years old.
These replica were first brought to my attention in 2000 via an E-mail inquiry from Malaysia about a Portuguese Tanga with a clear XF date indicated by "x63x"."
I noticed that the picture in the Numista link also has the “xx4x”.
What are your thoughts on this? Replica or Authentic?
I have reached out to NGC support as well to see if they can provide any guidance based on the article.
