Early A race cages on E-bay

I have never seen these before.
http://cgi.ebay.com/ebaymotors/Roll...263QQitemZ260358124131QQptZRaceQ5fCarQ5fParts

http://cgi.ebay.com/ebaymotors/Roll...f84QQitemZ260358127492QQptZRaceQ5fCarQ5fParts