I'm certainly no expert, but it appears to me to be lacquer. As stated in the other thread, a good indication of gold plate is a layer of silver plate that shines through where the gold plate wears; here it appears to be bare brass under the finish, usually an excellent indication of a lacquer finish.
Also, the color looks a little off to be gold plated, though that could be a result of the image (it's really hard to accurately picture shiny surfaces).
Also, the color looks a little off to be gold plated, though that could be a result of the image (it's really hard to accurately picture shiny surfaces).