14-inch pattern trimming scale, perfect for precise cutting. - Model Name: Pattern Trimming Scale - Patent Number: PAT.NO. 1420676 - Size: 14 inches - Scale: 1:1, 1:2, 1:3 - Application: Trimming, cutting I have stored this for a long time. I don't know what this is used for. I will give it to someone who can use it. Thank you for looking.