Gatefold box variations, glossy vs. matte ?

[CincYnoTi]

Anyone know which version of the gatefold boxes were the first releases: glossy finish or matte finish? My guess has always been that the glossy ones came first, since they were probably more expensive to produce. 

 

Combat boxes also had a version where the instructions slot was either vertical or diagonal. Phil has pictures of these on videogamevariations.com .  Again, my assumption was that the vertical slit was the original version, but I've never heard anybody else's opinion on this.

[Captain_Combat]

Atari did it right in the beginning with the heavy sizer, hex discs and neat gatefold boxes. As time went on they quickly started cost cutting because high growth is expensive and they needed to tap public markets . So yes, I also believe the glossy gatefolds probably came first.