This julep strainer is marked “C. J. Hauck & Son, Brooklyn, N.Y.” It measures approximately 5 and 1/2 inches in length and the bowl measures approximately 2 and 3/4ths inches wide.
J. C. Hauck was a manufacturer of fancy metal goods at his Brooklyn, N.Y. location in the 1860s. His son, Edward, obtained a patent for a cocktail shaker in 1884, and another son, Charles Jr., obtained a patent for another variation of a julep strainer in 1890. I have written a blog post about J. C. Hauck, including patent illustrations, which can be found here:
You might also like to read my blog post “The Victorian Bar” to read more about julep strainers:
This strainer has found a home with a good bartender!