The capital letter “A” suggest that it is a Thorn (Atlas) made tube. May some colleagues from Britain confirm that?
Today I've found two of these Osram tubes in the recycle bin. They are NOS and seem quite old.
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|Date added:||Sep 21, 2019|
|Dimensions:||2464 x 1848 pixels|
|Date Time:||2019:09:21 22:49:26|
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