Last Original Xbox Manufacture Date?

I was just given an immaculate original Xbox manufactured in 4/2005. I was surprised by the lateness of the date. 360 was announced less than a month after this one was manufactured.

Do we know when the last original Xboes were manufactured? Either my google-fu is weak or that doesn't seem to be published anywhere. Can anybody blow my mind with a super-late manufacture date?

 

I believe the last time this came up one was dated August 2005, I'll see if I can find it.

 

That was the same month that NVIDIA abruptly ceased production of the GPUs and a big factor in Xbox 360 being rushed out the door by Q4 2005. It makes sense.

 

I just picked up one today with a date of July 14, 2005 if that helps.