Embossed Tudor washer bottle

[Rollright@aol.com]

Hello,
 
I have the Tudor (in blue lettering on bottle side) bottle that came with  
car, but still not sure whether I should have the "no paint" embossed "Rootes"  
bottle.
 
So, I found one of the embossed "Rootes" ones on E-Bay. It is  REALLY 
yellowed and I've tried a number of cleaners with little success.
 
Anybody found an agent that will deal with the yellowing? The inside of the  
bottle looks fine so it is "skin effect".
 
 
 
Jim  Armstrong
rollright@aol.com
Mk1A  #382002083