RAF identification discs R.A.F. Cardington Airfield named 1618564 Osborne

RAF identification discs R.A.F. Cardington airbase named 1618564 Osborne. The discs are in good used condition, complete with its original string. The tag reads CE indicating Church of England. The service number 1618564 indicates he enlisted in october 1941 at Cardington Airfield. Source for the RAF service numbers here. Nice dogtags in good condition, possibly for research!