The following leaflet was produced and distributed to ambulance pickets in February 1990, less than 2 months before the Poll Tax riots. It refers to a national day of action on January 30th 1990 in support of the ambulance drivers strikes that had been going on for some time.
From the http://www.endangeredphoenix.com website
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EMERGENCY!
SOME QUESTIONS ABOUT THE JANUARY 30th AMBULANCE DISPUTE SOLIDARITY ACTIONS AND OTHER RELATED MATTERS