This Rearwin Sportster is a Model 7000, previous registration NC18768 serial 590-S, at the Mid-America Air Museum, Liberal, KS. It has a Townend ring, indicating it may actually be a Deluxe.
<a href="//commons.wikimedia.org/w/index.php?title=User:Kivaan&amp;action=edit&amp;redlink=1" class="new" title="User:Kivaan (page does not exist)">Kivaan</a>
<span class="int-own-work" lang="en">Own work</span>