I have one of the first shipped to the USA, for police evaluation. I was told that it actually came from Autrian military stock.
If you notice the case, it has the storage area for 17 rounds 0f 9mm. Also, you can see that the gun could be stored "hot", which was quickly considered a "no-no."
It was bought at Glock for $254. I bought four! Sold two to friends early-on
, but I still have one NIB.
Back then Glock was a building with no security door, and waiting room that maybe held 6 cops. There was a big barrel of mags, and they always told you to grab four or five, as you walked out the door.