Shem Drowne sword

The Shem Drowne sword is a unique Revolutionary sword found in Fallout 4. This antique irradiated sword could be a possible reference to a similar weapon called "St. Michael's Sword" in the novel 'Riptide'.

Characteristics
Targets take radiation damage, although less than a simple legendary sword with an "irradiated" modifier.

Location
Found in the Grave of Shem Drowne as a quest reward for completing The Gilded Grasshopper.