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I would use a glazier's diamond 8)

By the way, is there such a phrase in English "Is your father a glazier?" It exists in Russian and means "Вы не прозрачны!" or "Что, твой отец стекольщик?"

So, that's not true. As the developers of the pen say, "The space race was on, and the astronauts involved in the Mercury and Gemini missions had been using pencils to take notes in space since...

Those who have $12 mil would find the substitute after spending just a buck for research :)

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