Here is an antique liquor mixer and strainer apparently patented by Thomas Miller on September 26, 1882, patent number 266,126.
This strainer measures approximately 6 and 1/2 inches high with the strainer in the down position; and about 8 and 1/4 inches with it up. The top opening is 3 and 3/4 in diameter. It is made of tin with a copper bottom.
This is a very early version of a cocktail mixer and strainer. A copy of the patent is attached. Also attached is an 1894 B. S. Stevens catalog page which includes a version of this strainer (the version in the catalog has draining slots whereas this strainer has holes). And interestingly, this 1894 catalog calls it a lemonade strainer and not liquor strainer as it is called in the patent. My guess is that the Temperance Movement was in full swing at that time.
This strainer can be found here at my Etsy shop: