Generally, a 3 letter .com is a good pay day. That being said, the specific letters always play a big role and can be the difference between a quick 5, 6 or even 7 figure pay day. If I were you, I'd make a landing page stating that the domain is for sale and see what type of offers you get. Then...
By aged do you mean that it has a website on it or a history of having content on it or that it has to have been registered for a specific amount of time?
In light of the current news that Trump is easing / lifting sanctions on Syria. How much of an opportunity do you think this will be for domainers.
I just registered some Syrian related domains and wanted some input.