7/8" likely from early 1930 with same Mickey image as on our previous item #963. Reads "Mt. Baker Mickey Mouse Club" with small copyright symbol below his feet. No maker's name and no backpaper possibly as issued. Most of outer edge has light brown age stain going inward 1/8" or less. Majority of button surface and all of Mickey image remains clean and glossy. We've seen a matching membership card from this theater but we believe this is the first example we've seen of the club button. Rare.