Court of Appeals for the First Circuit December 1958 casesSierra v. Merchants Mutual Casualty CompanyN.L.R.B. v. Springfield Bldg. C. Trades CRubenstein v. KlevenRoccaforte v. MulcaheyGoldfine v. PastoreW.A. Stackpole Motor Tr. v. Malden Spin. DyeNat'l Labor Relations Bd. v. International Ass'n of Heat & Frost Insulators & Asbestos Workers