AFE 64.0504, Pierce Group Mine, Minnesota, 1964. Install Two Racor Inert Car Retarders on Fine and Course Ore Load Track. Interstate Commerce Commission Account Number 12, Track Laying and Surfacing. Cost: $6700. Series II. Lines East. Other Subject Categories: Track, Industry

AFE 61.0054, Pierce Group Mine, Minnesota, 1960. Relocate 1802' Track and Extend 23'. Interstate Commerce Commission Account Number 12, Track Laying and Surfacing. Cost: $4425. Series II. Lines East. Other Subject Categories: Track, Industry