I have to cover with dates knowing the uses you make of the dates; as borders sometimes, as gum in other according to your convenience. So is right: "we could say that was manufactured between March 1, 1945 -ringed grip section/innerspring clip/Triumph nib- and March 1948 -when Sheafffer´S beging to insert White Dot in metal caps-." This is true.
I think you're a little confused. The form of your statement indicates that the pen could have been manufactured at any time between the start and end dates you provide -- for example, in February of 1948. However, you now seem to acknowledge that this is incorrect, because you failed to consider the presence of the Lifetime nib, which as you agree was no longer being offered.
You has said vagueness, as "summer", when not inaccuracies as: "June '47 no longer had Lifetime nibs", when I proved that Sheaffer has manufactured after the date June that you have indicated.
Please quote the complete sentence I wrote that includes the few words you quoted above. I think that will help you understand better, and you can retract your improper assertion. Remember -- you'll need to quote the complete sentence; that will clear up your error where you claim my statement was an inaccuracy. Thanks!
So right, right, not precisely... At least no more right than the accuracy of the 3 dates have been provided by me, or my sentence "before March 1948 -when Sheafffer´S beging to insert White Dot in metal caps-." that by the way, was referring to WD place and not to Lifetime nib, as you confuse.
Yes, as I explained above, you provided an incorrect ending date for the manufacture of this type of pen, because you did not take into account the discontinuation of the Lifetime nib. We've already been over that ground.