1921 Tomb of Unknown Soldier 1 Peso

I've handled plenty of Mexican pesos from the early 20th century, and the 1921 1 Peso coin is one I've seen often, but I'm not entirely sure about a specific variant dedicated to the Tomb of the Unknown Soldier. If it exists as described, it might tie into Mexico's post-revolution commemorations, possibly struck in .720 fine silver like other coins from that year. Records from the Mexican mint are spotty; we know production ramped up after the 1910-1920 conflicts, yet exact designs for soldier-themed pieces remain unclear, with some archives lost in later fires. What stands out is the coin's potential use of recycled silver from older sources, a practical choice amid economic turmoil. That said, without solid evidence, I can't confirm this particular iteration—it's easy to mix up with standard 1921 issues. Perhaps it's just another peso doing its job quietly in collections.