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philippstahl
.User deleted
Thanks to Bas.nl for the scientific use of a Geiger meter to date a dial correctly.
"I have measured with my Geiger counter more than 10 Rolex watches with a underline.
All of them had swiss on the dial, and there was no radiation!
When you measured a normal swiss dial (no underline) they are radioactive. They give a radiation of 1 til 30 microSw/h "
From the earlier results we measure together you see the difference of radiation results, before & after radium used and tritium came...
5512...
6542...
6538...
To your studie on the messuared 10 x underlines you have had, gives me the decisive...
It all makes sense to me, finally i can agree on the definitaion of underline stands for tritium.
The Typo difference and print colour that have been used on underline dials...& using White Swiss, Gold swiss etc...
an underline on your dial stands for Tritium, and was used around '62-'63!!.... simpel :- )
Rgrds.P
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An underline on your dial stands for Tritium! |
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