GeraldT Posted April 17, 2022 Share Posted April 17, 2022 Unknown to me a part that says “Chicago Artizan Brass Co” on it. For inquiry, email or call gefrobinson@yahoo.com or 510-332-9588. Link to comment Share on other sites More sharing options...
Mark Wetherbee Posted April 17, 2022 Share Posted April 17, 2022 It looks like it might freewheel until you engage the pins on the outside of the hub?? Or no? With the step chain I’m going to say it is a little air pump that can be engaged with a bicycle chain, but only guessing… Link to comment Share on other sites More sharing options...
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