Japanese MO streamliner. This colorful new arrival is about 8.5" long overall. It's actually a wind-up floor toy but it seems to fit well with the tinplate theme. Can't find much information on this piece, it's definitely neat looking! In the rear corner is a maker's mark "MO" inside a diamond, along with "Made in Japan". The front has a reddish marble for a headlight.
The MO is posed alongside my Wells "Golden Streak" and a few other miscellaneous smaller streamliners (there's also a Lionel scale Hudson in the background).