Parks & Recreation Ron Swanson Alias Duke Silver T-shirt Large

Parks & Recreation Ron Swanson Alias Duke Silver T-shirt Large. Excellent Condition. See pics for measurements. Duke Silver is an alias used by Ron Swanson to perform jazz on the tenor saxophone. He is the leader of The Duke Silver Trio, and he performs at Cozy's Bar in Eagleton, Indiana, on the second Thursday of every month. His fanbase consists of middle-aged women almost exclusively, including April Ludgate's mother