Tin whistle
In recent years a number of instrument builders have started lines of "high-end," hand-made whistles, which can cost hundreds of dollars US each — expensive in comparison to cheap whistles, but nevertheless cheaper than most other instruments. These companies are typically either a single individual or a very small group of craftsmen who work closely together. The instruments are distinguished from the inexpensive whistles in that each whistle is individually manufactured and "voiced" by a skilled person rather than made in a factory.
Alfred De Courcy
Being a skilled metal worker, de Courcy was very creative in making new designs and registering new patents for whistle construction. He was in fact the only whistle maker beside Hudson to successfully cross the heights of Victorian era into World war I and onward.