This is the rather rare early version. Chrome filter rim and with Red T as shown. Quite a number of bubbles inside. Clean and clear. No haze no scratch and no oil on blade. Some faint wipe marks may be found under bright light.
As it is the early verison where the first two groups are glued together, there black spots are found on the very edge of the front under close examination. Will have no issue on photo. All later versions will have an improved design to eliminate this issue.