Age and Value of Older Bassett Chairs?

Are these vintage chairs or just old chairs and how do I find out if they are worth anything? I've had them for about 20 years. I bought them from a yard sale for 10.00. I thought they were pretty. I just looked at them and wondered, are these worth anything. They have an old Louisiana 1 cent inspection blue stamp under the bottom. The male chair numbers printed are 405-72-450054. The female's are similar, but I can't make out some of the numbers. If you need more pictures I can gladly post some.

Thanks.