set of 2 vintage Mexican, terra-cotta red clay, sculpted pottery whistles. One is a rooster and another dragon.

Read more about this history 

“ TERRACOTTA WHISTLES AS A TYPE OF TOYS”

https://earsiv.anadolu.edu.tr/xmlui/bitstream/handle/11421/2097/Pages%20from%20SAYI2-3.pdf?sequence=1&isAllowed=y