NOS question

["R. Ashford Little II" <70TR6@mindspring.com>]

Periodically you will see NOS items such as a brake master cylinder listed
on Ebay.  Since these parts have rubber items, are they any good?  Or even
if the rubber pieces have deteriorated, are the castings superior to parts
being reproduced?

 

R. Ashford Little II

'70 TR6 <http://www.ralittle2.com/> 
CC54994