In June of 2019, Tombstone Exploration entered into a partnership to develop one of their holdings, and that venture is now in production - the partner gets 60 percent.  Around the same time, they did a RS at, I think, 200 to 1.  I didn't hurt them, though they have not gained much since (for now).  But at least the company valuation has not fallen.  Proving that production is sustainable should help the share price eventually, if not improving metals prices.