There should be a green tint on at least one of the side, maybe only > at a certain angle. Although this is not always the case: the 35/3.5 > has no color at all on the front glass.
SMC Takumar 35/3.5 does not have a multicoated front element, according to Gerjan. I just checked my K35/3.5 and it does not appear to have a multicoated front element either. I checked my K28/3.5 and it does. Butch Each man had only one genuine vocation - to find the way to himself. Hermann Hesse (Demian)