IT'S COLD ENOUGH TO CRYO TREAT YOUR VALVES!

Brrrr, isn't it cold outside.  Anyone keen to DIY cryo treat their valves?  For your delectation, here is a picture of some valves dressed up to protect them against the cold - they don't look too happy do they?  This seasonal jape comes from a marketing film to be shown in German kinema by Telefunken some time in the early 1930s.