I don't know much about Gazelles but at least on my Champion Mondial track which is from early 1970s I think (no pics now, sorry) the seatstay ends wrap almost all the way around the seattube to the front side. On yours they look very different.
Mine looks pretty much exactly the same as the yellow one posted by Habitual on the previous page. Different color and no chrome, though.
I don't know much about Gazelles but at least on my Champion Mondial track which is from early 1970s I think (no pics now, sorry) the seatstay ends wrap almost all the way around the seattube to the front side. On yours they look very different.
Mine looks pretty much exactly the same as the yellow one posted by Habitual on the previous page. Different color and no chrome, though.