The button is 7/8” showing an early sweeper which bears the company’s name along with location and model name “Cyco/Grand Rapids.” The 7/8” button is surrounded by 1.5” stiff wire which can be used as a money clip or the wire can be sprung loose at one end and keys can be inserted on it to serve as a fob. Reverse has W&H name along with name of the carpet sweeper company billing itself as “Largest Sweeper Makers In The World.” c. 1900 and only example we’ve seen. N. Mint, displaying Mint.