Which supplier for 68 white top?

[nvr-enuf]

Hello everyone,

The top on my 68' needs to be replaced to the original "white" top.

Looking for advice on which supplier to purchase the top and is there a specific color code to order in order to ensure I get the right color WHITE top? 

I believe one supplier, Robin, states they are the original supplier of the tops.  Is that correct?

Thanks in advance

Scott