International Union of Mine, Mill & Smelter Workers, Local 515 v. American Zinc, Lead & Smelting Co.

Appellant and appellee are parties to a collective bargaining agreement entered into on March 6, 1957, 1 relating to appellee’s Pend Oreille County, Washington, mining operations. The case before us arises out of a dispute between the parties regarding provisions of the agreement covering deductions and checkoffs to be made by appellee from the wages of members of appellant, viz.:

While the collective bargaining agreement was in force, members of appellant who were employed by appellee executed and delivered to appellee deduction authorization cards, addressed to appellee and in the form set out in Schedule “C” attached to the collective bargaining agreement. 2 In April, 1960, appellant’s members voted an assessment of $10.00 per member per month as a special strike assessment to assist another local union with respect to a strike contemplated to be begun by the other local against the employer of its members. The assessment was to continue from month to month “until the conclusion of negotiátions in the Coeur d’Alene and Metaline areas” and was to be paid by appellant’s members in addition to appellant’s established $5.00 per month per member union dues.

Appellant notified…