Columbia300 was bought out by Ebonite recently, so anything made prior to the buyout probably isn't going to get much attention from the new owners, who wouldn't be able to tell you anyway.

 The first number is the serial number is a 6. That denotes the fact that it was produced in a year that ended with the number 6, as in 1976, 1986, 1996,........

 I don't know that anybody ever really tracks the balls by serial number, so the actual date of production may be lost forever.

 If it was made in San Antonio, it was probably prior to 2006, because many companies were having their polyester balls produced overseas by that time, so it is probably older than 2006 at least.

 Can you post a picture of it? Believe it or not, the look of the whitedot has changed over the years, and some officionados might be able to get very close to the date just from the way the ball looks.

A picture of the logo might help.  As far as drill instructions I don't think you will find much difference in new and old models.  There is if I remember correctly a surface difference between the new and old ones.  You probably can get that information from Ebonite.  Also old white dots depending on how they were stored became brittle.  Resurfacing may help but cracking out around the fingers and thumb may happen.  The old white dot's were not as bad about it as the yellow dots but still did it. 

Smash49

It may be from the 70's and the durometer on them was in the low 80's! The yellow dots were in the mid 70 on the durometer and the white dots where low 80's with the blue dot being mid to upper 80's! The first number was the year as stated and there was a code that identified everything from the serial number.

November 1976. Number is the year, letter is the month produced! N started the year -no O - P Feb and so on!

Thanks Bruce! If we stay healthy, we might be in the hunt!!!!!!! I hope we get back to Tennessee next season so we can meet up!

hello! i also have a white dot i am trying to date. I did not quite understand raiders reply. the serial number is IM32103. It is red/maroon marble color. I believe the first letter is an I it might be a 1? Its just a line. I can take a picture if anyone happens to come by this. there is no WD log or any other log other than the Columbia300.

so in plain english, what year is my white dot serial number #1M32103?


march 1981?