List:
There’s an early S-1 rear license plate lamp housing, cover and diffuser for only $13 on ebay. I don’t know anything about it but it seems to be in fair-good condition and at a fair price. It appears to have some deterioration, but then again, don’t we all.
I have no affiliation with the seller but do have an affinity for the vehicle it fits. 
Lou
http://www.ebay.com/itm/1971-Jaguar-XJ6-Original-License-Plate-Light-Made-in-England-/171411452239?ssPageName=ADME:B:SS:US:1123===================================================
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