National insurance made amusing by the eccentric Richard Massingham.

So what's in a number? Your future health and security, that's what. Richard Massingham, hero of the war's most amusing public information films, turns his cinematic wit and hangdog face to a cornerstone of the postwar welfare state: expanded national insurance. The importance of knowing one's number is conveyed with the everyman surrealism that was the inimitable Massingham's stock-in-trade.

Trailer.