Last month, I bought four "Mexican Coin News" monthly magazines (I only had the number 6 of this rare publication).So I searched the Newman Numismatic Portal and I was able to find a note that appeared in the "Missouri Journal of Numismatics" Vol. 8 (August/1983, page 15) stating that the Missouri Numismatic Society had in its library only issues 5 and 7 of "Mexican Coins News" (MCN) corresponding to December 1966 and January 1967.

I was also able to locate the book "American Numismatic Periodicals 1860-1960, Book II: An Illustrated Collectors Guide" by Remy Bourne (1990) where only 4 issues (1, 2, 3 and 6) of the "Mexican Coin News" are listed.I checked Pete Smith's e-Book "American Numismatic Biographies" (version 04 July 2021) in search of the staff of the MCN publishers (H. R. Vrooman, Margarito C. Garza and so on) but I could not find any information about them.

I also couldn't find any information about this publication (MCN) in the book "Numismática Mexicana - Una Guía de su Literatura" by Christopher M. Bolton (Mexico City, 2008).

In the book "Numismatic Bibliography" by Elvira E. Clain-Stefanelli (Battenberg-Verlag, 1985) there is a reference to MCN (page 48, # 682) but without specifying the number of issues published.I am sure that some reader of The E-Sylum has the missing issues of "Mexican Coin News" in his or her collection.