3.4千 
1.1千 
2.6千 Is there a a quick way to identify the machines produced in latter yrs
This model was produced until Oct of 2016. I like to keep one or two in stock for customers looking for repairable, upgradable machines but would like to acquire the ones made in latter years. Is there a way to quickly identify these machines? I know I can use Coconut Battery to tell manufacture date but is there another way? Like with serial numbers and Apple's Check Coverage page? Any external identifiers? Or in about this Mac?
