Nice basic collar clip design for holding your collar secure. 

• Size: 1 3/4" in length.
• Type: Pre Owned Mid Century from the 1940's. 
• Condition: Minor rub wear on the ends and a tiny scratch seen on the bar when viewed under magnification. 
• Materials: Silver tone plated metal. 
• Markings: Marked Swank 50 on the back of the clip. Patent No 75818 is marked on the side of the clip.