|From:||A van Binsbergen <firstname.lastname@example.org>|
Hi there histonetters - it's been a long time!!
Don't know if this will help but here goes:
Years ago we used something similar for cross matching blood in the blood
banks. They had weels and were made out of some sort of ceramic material -
glossy white like bathroom tiles - eventually white plastic (probably
cheaper) - try the blood bank/blood transfusion service - maybe you'll find
a member of 'the old school' who can remember!!
Annie in Africa
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