Why do some iPhone 6 boxes have a pic others don't?

[dj1891]

Noticed this on eBay, some iPhone 6 have a picture on the front, others like mine don't, they are blank and just have a raised bit. Why would this be?

 

[deadsoul]

Noticed this on eBay, some iPhone 6 have a picture on the front, others like mine don't, they are blank and just have a raised bit. Why would this be?

White boxes were first released during iOS 8 launch , then the white boxes with the picture were released with iOS 9.