Gunworks derringer

Question
Is there any one on your staff who could help me find any information on a Gunworks derringer,of Ton,NY
model M9-9MM

Answer
Gun Works Ltd. is no longer in business, they made 2 models an X-caliber and your model 9. Early guns, such as yours were made in Tonawanda NY, letr moving to Buffalo. Your model was produced up until 1986. 60% condition is worth about $50., 100% unfired about !135.. Thanks