8 Count Crayola Crayons: What's Inside the Box

I got this 8 count Crayola box of crayons from a friend. It was missing a few colors, but I found out which ones it came with and was able to borrow a few colors from another set to make a complete set.

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One of the cool things about this box is the style number appears on the bottom flap of the box.  I have not seen style numbers before the 1960's, but I could be wrong.  I would love to see more 8 count boxes from this time period to see precisely when Crayola started using the style numbers.  It does not have a code number.

Collecting Information
Boxes: 8 count Crayola crayons
Year: 1966
Other Boxes: There are numerous other sizes of 8 count boxes
What's inside the box: 
black, brown, violet (purple), blue, green, yellow, orange, red
Purchase Information: gift
Where to buy: eBay
Style Numbers: 52-6008
Code Numbers: none known
UPC: None

1966 8 count Crayola crayons