Where can I get this taillight?

So I've been debating about just getting a lucas style taillight for my bike, or something else - then I saw somebody driving around with a CB500-4 and lo and behold the taillight was nice and small:



Where can I find one of these lights? Most of the ones I've seen on eBay are just like the ones on the 450, with the weird conical thing coming out - this one kind of comes straight up and has a kind of goosneck that points it back.

Anybody know the story on these lights?

http://cgi.ebay.ca/1976-78-Honda-CB550-CB-550-Tail-Light_W0QQitemZ200298366136QQcmdZViewItemQQptZMotorcycles_Parts_Accessories?hash=item2ea2b684b8&_trksid=p3286.m20.l1116
http://cgi.ebay.ca/Honda-Tail-Light-Assembly-CB550-brake-light_W0QQitemZ180330438005QQcmdZViewItemQQptZMotorcycles_Parts_Accessories?hash=item29fc881d75&_trksid=p3286.m20.l1116
http://cgi.ebay.ca/78-HONDA-CB550-CB-550-TAILLIGHT-TAIL-LIGHT-BRACKET-3C_W0QQitemZ120169655281QQcmdZViewItemQQptZMotorcycles_Parts_Accessories?hash=item1bfaab6bf1&_trksid=p3286.m20.l1116

*looks sheepish*

I agree,
I've been looking for a round tailight I can put into a cowl...
Something less obtrusive...

If anyone knows where to find nice ROUND tail lights, I'd greatly appreciate a PM or reply here..

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