I've been doing a little research on Black Hawk bows and haven't come up with much about how old your bow might be. They were made by Cravotta Bros, Inc of East McKeesport, PA,and I found a patent date for them in 1959, but don't have a clue how long they were in business. Last date I saw was 1970. Your bow is an antique, but I don't think it has any collector value based on what Black Hawks have sold for on Ebay - less than $100. Wouldn't hurt to clean it up and maybe refinish it if that's something you'd like to do.