Large Spring Ring for Pocket Watch Chain Gold Color - NOS

One NOS Gold Color (likely plated) Spring Ring for Pocket watch chains, new/old stock. The loop is a bit over 3/4" (~20mm) in diameter and I'd describe the color as a bright yellow gold, resembling what you would see in 18K, however, please examine the images for further details. Also note that it is unmarked with regard to maker or metal content. You can find quite an array of spring rings on eBay but this one is a much higher quality and detail that most. Images do a satisfactory job of representing the item.