It is hard to make this crown out to definitively attribute to Antonio Pineda. The parrot has beautiful mottling of colors of enamels.
Textured under the enamel similar to guilloche. It is marked sterling 925 Mexico. And lastly a pair of screw back earrings masterfully inlaid with abalone.
It is marked Taxco 925 but there are 2 initials before 925 that look like AA or AR. Please look at all photos for sizes.