Vinyl sticker is 3 inches, 76 mm in diameter. It is NOT a sewing machine decal but some people have used it on Singer Sphinx models that have deteriorated decals.

I took a photo of my antique sewing machine sphinx decal then digital cleanup of the photo to create the sticker.

Line on the bottom says TreadleLady.com

See my store for other sewing machine items and signed book I wrote, Treadle Sewing Machines, Clean and Use an Iron Lady by Donna Kohler. It has lots of helpful information and great reviews.