An Act repealing the act of May 15, 1945 (P.L.545, No.215), entitled "An act relating to the rate of pay for policemen, firemen and park guards in cities of the first class; providing for a system whereby policemen, firemen and park guards of cities of the first class who shall enter, or who shall have entered, the military service during the present hostilities shall be paid upon honorable discharge and re-entry into the police, fire or park guard service at the same rate of pay as if they had actually served on the police force, fire bureau or park guard force of cities of the first class during the years, months or days they were in the military service."