This is an 18 Steel string guzheng from instrument brand JinYun. It features straight steel and wound copper strings and that sweeping C-Bridge at the tail. I have seen a similar, 21 and 23-string instruments made by the same maker with nylon strings.

Google is throwing security warnings when I try to visit their website, so I won't link directly to them from here. But you can see their url in the photo and I can tell you that the product numbers are:

• 18 strings - 01157
• 21 strings - 01018B
• The 23-string instrument was reportedly a limited edition; I saw one for sale in California but could not find a product number.

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Made by manufacturer JinYun, this one has 21 nylon strings- and most notably, the fixed bridge at the tail is split into four separate bridges. It mimics the different lengths of string the S-bridge creates, but (I assume) has a different set of tradeoffs. I have yet to see the difference this choice makes first hand. If you have any experience with one of these instruments, please email me! I have also seen the tail bridge in three parts, so please don't think four is the only way to go.

From manufacturer JinYun. Google is raising security alerts when I visit their website so I won't link directly, but this one's product number is 01118. 

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