I'll be darned, the prior Custer Car sequentially made to the one I found in San Diego just showed up on Facebook

https://www.facebook.com/groups/197491484165115/permalink/1296103087637277

back in 2008 I came across the next one made (according to the serial number tags, which crazy, we both photographed) 

http://justacarguy.blogspot.com/2008/11/rare-historical-automotive-jem.html  and the follow up gallery

http://justacarguy.blogspot.com/2009/01/custer-chair-update-1941-engine-powered.html