REG-375-MBK Richwood Master Series electric guitar "Buckaroo Deluxe Tremola" REG-375-RRM Richwood Master Series electric guitar "Buckaroo Deluxe Tremola" REG-375-SWH Richwood Master Series electric guitar "Buckaroo Deluxe Tremola" REG-435-PRD Richwood Master Series electric guitar "Retro Special Tremola" REG-435-MBK Richwood Master Series electric guitar "Retro Special Tremola" REG-435-IBU Richwood Master Series electric guitar "Retro Special Tremola"