Nope. My 1972 Tele was ordered as a natural (color code 521). I have seen several tele's on Reverb that are obviously not natural because all natural finish bodies are ash and the grain is much more distinctive. Pretty easy to spot the alder under the clear finish and that's what I usually see there.
The bridge on mine is also 3 trees, not like the newer ones, and steel, not brass like the older ones.
Late 60s and early 70s Natural finish wasn't just over ash, but also mahogany. Most people are familiar with the late 60s Natural finish mahogany Thinlines, but some early Thinline version 2 were also (I've had two of them, and both very light colored).
Also, your three bridge saddles are slotted stainless steel. Several other types of saddles were used on Teles between the variations of the early brass and the switch to those circa 1968.