Wheels & dovetailing -- how prehistoric is my dresser? I recently bought an elder dresser and am trying to determine...

I recently bought an elder dresser and am trying to determine roughly how old it is. My guess would be overdue '60s/early '70s. It has built-in wheel - a metal of some kind, drastically small and dark - and dovetail joint in the drawers. All solid wood - no veneer. The mirror that come with it be assembled with small nail, no stapling. I *think* the wood is walnut. The style is two large, long drawers on bottom, next two small side-by-side drawers above them. The two small drawers each own skeleton key locks.

Any backing in dating this piece would be appreciated!
Answers:    A picture would assist, but I am guess your dresser is a lot elder then you suppose, by maybe 40 to 50 years. I am guessing it is a princess dresser!!