XXXSD/30Y

 Part 1: January 1 to February 28

Part 2 from June 1 to 30

Part 3: August 1 to September 30

Part 4: December 1 to 31.

Please note that if we do not have a spread in these dates, the dates may change or be extended.

QSM 163SD001 Richard, Eqsl and paper QSL