VINTAGE, RARE, ATTIC FIND, Roland 4PL 4P2-1 4P2-2 Portable Red Radio 1957. Roland Radio Corporation; Mount Vernon, New York. 4 tubes, 9 circuits, broadcast, powertype dry batteries, Loudspeaker permanent magnet dynamic, made of plastics (no bakelite or catalin). 6 X 5 X 2.