Authentic rack numbers?

[Big_Bear]

Hey folks,
I've got a M14 usgi stock (I've actually got it for sale now in the EE) with some interesting numbers on the side, they seem like rack numbers. Haven't seen anything quite like it before. Any ideas? The stock was supposedly in storage for a long time before I got it - it was dirty enough. The paint looks era appropriate to me. Anyway, have a look.
Thanks

 

[sunray]

No PBI troop/platoon sized unit had 700 bodies. A number on the side wouldn't be very visible in a rack either. That number could be anything. A surplus dealer's inventory number, for example. That one isn't likely though.

 

[Evil_Edie]

the white stripe makes me want to say the stock came off of a drill rifle. so the 700 might just be a particular unit's number.

just another guess, perhaps the manufacturer pulled every hundredth rifle to be tested and marked them this way.

 

[Big_Bear]

Thanks for the replies guys. I did find something about the white stripe being used on drill rifles... Either way, I love these little mysteries. Gets the imagination humming.

 

[Carlsen Highway]

I got a walnut GI surplus stock and I have a big 64 painted in white paint on my handguard, and a 117 inked on the bottom of the pistol grip. Would they both be rack numbers? Might the number on the gripcap area be the end of a serial number? I was hoping it might be - because by chance it matches the serial of my rifle...