A collection of 25 Open Championship postal covers

A collection of 25 Open Championship postal covers, each signed by that year's winner, for 1970, and then a run from 1973 to 1996, the 1983 cover signed by Tom Watson and all Royal Birkdale previous winners (Thomson, Palmer, Trevino & Miller), the 1993 winner Greg Norman signed on a 1994 cover bearing his photographic portrait; sold with a St Andrews 1970 Open Championship unused scorecard; & an Augusta first day cover signed by Tom Watson, 1977 (27)