I have owned and still do own quite a few Land Rovers, my daily driver is a October 1984 Isuzu County, it has no metal badges, the front has a sticker which reads "Land Rover 110" on the rear left side it also has another sticker oval in shape black background with the Land Rover logo, the Series 3 had the words "Land Rover" on the grill (plastic) no other badge on the front.
In the image I have placed different L/R badges starting with the Series 3 grill, the badge at the top is a rear one from a Series 3, the next one down is off later S2A' note it has a different style of lettering and states Rover Australia, the badge below that is also a Rover Australia that was fitted to S2/2A (early) assembled in Aust, the next one states Solihull, later Series 1 early S2, the next one states Birmingham Series 1's after some time in the early 1950's the small one at the bottom is early Series 1's, I don't know everything but the only Brass badges I have seen (and I have 2 of them) are casting made in the last 20 years or so, I wouldn't have a clue what the 90 or Puma's have on them, cheers dennis
the image https://i.imgur.com/2LuIrlP.jpg

