I believe this medal is one of those examples. Based on my research I believe this to be an original example. There is residue on the reverse from where it was hung in a display. While fakes of this medal do exist they generally lack the consistent pebbling on the front. Measurements of this medal also match known originals.
The item "Original Spanish Civil War International Brigades Medal" is in sale since Monday, October 11, 2021. This item is in the category "Collectibles\Militaria\Other Militaria". The seller is "brcost-53" and is located in Boston, Massachusetts. This item can be shipped to United States, Canada, Bahamas, Uruguay.