Ah so 501 came after 531. you're right I was only thinking of British frames as that's what I have in the hallway.
another point though well presented is these days double butte cromo is already a good thing to see.
of course what is done with the tubes is more important than they material itself.
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Ah so 501 came after 531. you're right I was only thinking of British frames as that's what I have in the hallway.
another point though well presented is these days double butte cromo is already a good thing to see.
of course what is done with the tubes is more important than they material itself.