I do not want to attest to the originality of the rifles, but currently Joe Salter has a couple of Zischang rifles for sale.    
(You need to Login or Register to view media files and links)

(You need to Login or Register to view media files and links)

Here is a link to a past rock island auction for a Zischang rifle.
[url]
(You need to Login or Register to view media files and links)

Here are a few past discussions
(You need to Login or Register to view media files and links)

(You need to Login or Register to view media files and links)

A couple of interesting facts. The Zischang Sporting Goods Company still exists in Syracuse NY. Probably 20 Years ago I started trying to write an article and went to the offices. I explained what I was writing they were amazed that anybody would be interested. When I asked about old records, they told me that all that “old stuff” got thrown out when they moved. I did talk to one employee who was there when the move happened, He described throwing out all the old jigs and fixtures and what I think was rifling jig. Along with hundreds of pounds of old paper work, it all went into an old landfill behind the shop. 
Also there used to be a motorcycle shop next door to the old shop. I think at one time it may have been part of the shop because above the parts counter was a full race Zischang Borchardt. I tried to buy that gun on more than one occasion but no sale from conversations I wasn’t the only one.

40 Rod