Mishko worked as an assistant to Davo Sculdun, a wealthy Chandrilan man who possessed an art gallery in his office on Coruscant. In 3 BBY, Mishko discovered and informed Sculdun that the Coryio Chalice in his collection was a forgery. Despite Mishko’s reassurance that even the best collections have occasional problems, Sculdun ordered that the entire collection be taken to be re-certified. Unbeknownst to either of them, Kleya Marki, a rebel member, was listening to them with a listening device she had planted in a different artifact that Sculdun had purchased. Mishko later visited the Galactic Antiquities and Objects of Interest, the shop where Marki worked, and where Sculdun had bought the artifact with the listening device. While there, Mishko confided in Marki about the issue with the forgery and that the entire collection would be examined following a party Sculdun was hosting during Senate Investiture week. At the party, Mishko spoke again with Marki about the stress she had been under regarding the collection’s reappraisals.