someone seems to have a collection of these, and they are getting auctioned off. Damn shame that the collection will likely be scattered - but that's just how collecting goes

https://rmsothebys.com/auctions/hf25/lots/n0027-stewart-model-27-speedometer-with-clock

https://rmsothebys.com/auctions/hf25/lots/n0025-jones-speedometer-with-clock/

https://rmsothebys.com/auctions/hf25/lots/n0026-ever-ready-autocrat-speedometer-with-clock/

https://rmsothebys.com/auctions/hf25/lots/n0028-jones-speedometer-with-clock/