top material question

[mot]

where can i find out what top material is called
I have a M-2588 or M-2388 I cant read the print good enough to say for sure if the second numer is 3 or 5
i would just like to find out where i can find out the M number and what its called
thank you
tom

 

[redmodelt]

Open or closed car? Hoe old is the sample? You can get sample cards from suppliers like Snyders that you might be able to match.