The complete set in detail

F0327
Sc. B60
Sports : Tug of War - Recreation fund of the employees of the P.T.T. - 20 + 10 cts. brown

F0328
Sc. B61
Sports : Foot Race - Recreation fund of the employees of the P.T.T. - 40 + 10 cts. red brown

F0329
Sc. B62
Sports : Hiking - Recreation fund of the employees of the P.T.T. - 50 + 10 cts. black brown