Art. 2. The iron molders, members of the Philadelphia Union of the Iron Molders’ Union of North America, agree to withdraw their demands that the foundrymen of Philadelphia should operate their foundries under the rules and regulations of the union. Art. 3. In accordance with the national agreement, entered into at the recent conference in Cleveland, on the regulation of molders’ wages, the foundrymen of Philadelphia who are members of the National Founders’ Association, and the molders of Philadelphia who are members of the Iron Molders’ Union of North America, agree to the following wage scale: The standard minimum wage rate for bench and floor molders who have learned the general trade of molding shall be twenty-seven and one-half (27½) cents per hour, or sixteen dollars and fifty cents ($16.50) per week of sixty hours, it being understood that when a molder has completed his work before regular shop-closing time such time shall not be deducted in computing the week of sixty (60) hours. Art. 4. The standard minimum wage rate shall be subject to the following DIFFERENTIALS: 1. The young man who has completed his apprenticeship, and who, by reason of his mechanical inferiority or lack of experience, or both, in either branch of the trade of molding, shall be unfitted to receive the full wage rate provided for above, shall be free to make such arrangements as to wage with his employer for a period mutually satisfactory as may be agreeable to himself and employer. 2. The molder who, by reason of his physical incapacity or physical infirmity, cannot earn the standard minimum wage rate, is to be free to make such arrangements as to wages as may be mutually satisfactory to the employer and himself. 3. There being in some foundries a grade of work calling for less skill than is required by the ordinary molder, this grade of work being limited in quantity, it is agreed that nothing in this agreement shall be construed as prohibiting the foundrymen from employing a molder to make such work and paying for same at a rate that may be mutually agreed upon between the molder and the foundryman. It is understood that a molder who is working for and receiving a rate of wages of twenty-seven and one-half (27½) cents per hour or over, is not to be asked or expected to make the grade of work referred to above for any less wage rate than he is regularly entitled to under this agreement. This does not give the molder the right to refuse to make the work if it is offered to him at his regular wage rate.