Vintage Montag Stationery

I love vintage stationery - I used to collect stationery when I was younger.
I found this groovy advertisement for Montag in one of my vintage Seventeen Magazines:

And here's another ad - for "Racing Stripes":

I found this lovely vintage box of Montag stationery at a thrift store a while back:

And then I found another.....

.... hmm, I didn't think I was STILL collecting stationery - but maybe I am!