Thread: Friday 2010-10-08 Dev. update and Discussion
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Old 10-09-2010, 01:15 PM
swiss swiss is offline
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Originally Posted by philip.ed View Post
Alas, this was not so. The celluloid was used for the lenses of the mark III and IIIa goggles.
?

Why did they use celluloid instead of glass?
What were motorcyclists lenses made of?
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