Three bowlers reaching 50 wickets for a team in a season in the same match in the County Championship

1937 Nottinghamshire (HJ Butler, H Larwood and W Voce)
v Worcestershire at Dudley, 10/7/1937
1946 Middlesex (LH Gray, JM Sims and JA Young)
v Warwickshire at Lord's, 26/6/1946
1948 Surrey (AV Bedser, JC Laker and JWJ McMahon)
v Middlesex at The Oval, 7/8/1948
1959 Gloucestershire (AS Brown, C Cook and DR Smith)
v Lancashire at Gloucester, 4/7/1959
1969 Glamorgan (MA Nash, DJ Shepherd and DL Williams)
v Gloucestershire at Cheltenham, 13/8/1969
2013 Lancashire (G Chapple, KW Hogg and SC Kerrigan)
v Hampshire at Southport, 28/8/2013