Counterstamped or Chop marks coins. https://en.wikipedia.org/wiki/Chop_marks_on_coins Have anyone seen this before??
450 Réis - Luis I Countermark "Crowned PM" over 1 Rupee /Victoria, Índia https://en.numista.com/catalogue/pieces28658.html
https://en.numista.com/catalogue/photos/somalis_fr/133-180.jpg Indian Rupee counterstamped Victoria https://en.numista.com/catalogue/pieces143615.html https://en.numista.com/catalogue/pieces136980.html
Another one https://i.ebayimg.com/images/g/wAQAAOSw1AtkW6ak/s-l1600.jpg https://www.ebay.com/itm/2043327899...55-0&campid=5338722076&customid=&toolid=10050
The host coin, and the counterstamp, are fakes. silver plated brass, junk out of China. Run Forest run! bob
Yes, There plenty Fakes around. Non magnetic; this can fools anyone. Mostly the expensive old coins are being fake up. There are a few things that gives them away. For those that know what to look for from photos supply. The size and weight. The conditions of the looks. The Mintages. Location where the coins are being sold. If a seller do have 1 x Fakes than chances of others are high.