Code	School website	Location
AH	Alleyne's High School	Staffs, Stone
AL	Altrincham Girls' Grammar	Cheshire, Altrincham
AS	All Saints'	Berkshire, Maidenhead
BC	Bradfield College	Berkshire, Bradfield
BE	Bedales School	Hampshire, Petersfield
BH	Farr High School	Highland, Bettyhill
BL	Bromsgrove Lower School	Worcs., Bromsgrove
BM	Bedford Modern School	Bedford
BR	Bryanston School	Dorset, Blandford
BS	Beaconhurst School	Stirling, Bridge of Allan
BT	Bristol Cathedral School	Bristol
BV	Belvue School	Middlesex, Northolt
CC	Coed Cae Junior School	Blaenau Gwent, Blaina
CH	Chaldon Primary	Surrey, Chaldon
CO	E.P. Collier	Berkshire, Reading
CS	Camden School for Girls	London, NW5
CT	Cottesmore School	West Sussex, Pease Pottage
DE	Delabole Community Primary	Cornwall, Delabole
DH	Dale Hall	Suffolk, Ipswich
DU	Duncanrig Secondary School	Glasgow, East Kilbride
DR	Dragon School	Oxford
EH	Edgbaston Girls High LS	Birmingham
GW	George Watson's College	Edinburgh
FC	Forest Centre	Bedford, Marston Moretaine
HP	Honeybourne First School	Worcs., Evesham
KL	King's Lodge Primary School	Wiltshire, Chippenham
KS	Keswick School	Cumbria, Keswick
LA	Lawford Primary School	Essex, Lawford
LG	Larne Grammar School	N.Ireland, Larne, Antrim
LM	Lytchett Minster School	Dorset, Lytchett Minster
LP	Lindfield Primary School	West Sussex, Lindfield
LS	Lionel School	Isle of Lewis, Port of Ness
ME	Medina Valley Field Centre	Isle of Wight
MH	Milford Haven School	Pembs., Milford Haven
NG	Northamptonshire Grammar School, Pitsford Hall	Northampton
NH	Norwich High School for Girls	Norfolk, Norwich
NS	Norwich School	Norfolk, Norwich
PA	Paible School	North Uist, Bayhead
PO	Portgordon	Morayshire, Portgordon
PS	Pinewood School	Oxon., Bourton
PY	Pyrford Primary	Surrey, Woking
QF	Queensferry Primary School	Edinburgh, Queensferry
QP	Queen's Park CTC	Lancashire, Blackburn
RC	Radley College	Oxon., Radley
RH	Royal Hospital School	Suffolk, Holbrook, Ipswich
RL	Richard Lander School	Cornwall, Truro
RO	Roose Primary School	Cumbria, Barrow
RS	The Royal School	London, Hampstead
SJ	Stanley Junior School	Lancashire, Blackpool
SO	St Oswald's Primary School	Sheffield
SP	St Patrick's Primary	Lancashire, Preston
ST	Sandwich Technology School	Kent, Sandwich
SW	Cardinal Wiseman School	Middlesex, Greenford
WA	Washington School	Tyne and Wear
WB	Sir William Borlase's Gram.	Bucks, Marlow
WC	Wells Cathedral School	Somerset, Wells
WH	Westbourne House	West Sussex, Chichester
WP	Willowbrook Primary School	Leicester