English: This is a page scan of a print from "The Story of the Flute" by Henry Macaulay Fitzgibbon depicting the flute ring-key developed by Rev. Frederick Nolan. This book was originally published in London and New York in 1914. Fitzgibbon died more than 70 years ago, so this image is in the public domain by UK and US law.

This file is an original and may be obsolete for general use, but is kept for historical or archival use. As such, it should not be modified or deleted except to correct upload or technical errors. Any modified versions or replacements of this image should be uploaded with a different file name. العربيَّة ∙ čeština ∙ Deutsch ∙ English ∙ español ∙ فارسی ∙ français ∙ magyar ∙ italiano ∙ 日本語 ∙ Lëtzebuergesch ∙ македонски ∙ മലയാളം ∙ Nederlands ∙ português ∙ русский ∙ slovenščina ∙ svenska ∙ 简体中文 ∙ 繁體中文 ∙ 正體中文（臺灣） ∙ +/−