I acquired this bottle about 10 years ago in a lot of vintage bottles, and none had the boxes. I was surprised there was no batch code stamped on the label. I'd guess this is circa 2000, but I have yet to come across this label (on the front of the bottle, except in bottles older than 2000) in 50 ml sprays and it seems to be an older type. Here are the pictures (the bottle code is HP and 8 and the stem is of the thicker, older type):

https://imgur.com/a/0yyguiR

https://imgur.com/a/gwuktT0

I have a 1999 EdP and this EdT just seems a bit lighter, but equally rich/complex.