Bolt to frame 21" spare tire carrier ($100). Shipping from Green Bay. My photos are too large for the site - send pm and I will email your request. Thanks.
Here are Marvin's pics of the spare tire carrier:
I have a refinished 23" Model T wood-spoke wheel hanging in my shop as 'wall art'. Measuring the hub side of the wheel, it is 23" edge-to-edge across that hub or back side. The carrier has the top two tabs to fit inside against the steel felloe, then the bolt on the bottom anchors into the wheel lug hole, and it does fit that wheel. Hope this helps to clarify.