What is my 1967 Mustang with 19,000 miles worth?

I have a 67 light blue mustang coupe with a six cylinder engine and auto trans. The car has less than 19,000 miles. Everything is original except gas tank, hoses, tires. It has the original dealer window stickers, handbooks, bill of sale. It has never been hit...never repainted. Runs fine when we take it out of the garage a couple of times each year. The paint is old, unrestored, and has some blemishes from things the were left sitting on it. The interior is perfect. Doubt anyone ever sat in the back seat. I am getting wildly different estimates on the cars worth. I'd like to get an accurate answer, and an idea of the best place to place it for sale. Thanks. Dave

The best thing to do at this point is get a professional appraisal. I was reading in a classic car magazine not long ago, and they're professional appraisers that do classic cars,muscle cars,antique cars and of course Mustangs. you might be able to google it.
And also, some classic/muscle car insurance companies like Heacock, Grundy and Hagerty may can help you out by giving you some information about your car and point you in the right direction to getting a professional appraisal....Hope this helps.