R-157a Edison Standard Speaker (extremely rare reproducer and matching recorder). Introduced in 1889, serial # NL 10870, is the only Edison combination recorder-speaker known. Both styli are perfect. Completely original and has never been overhauled or disassembled, even the linkage has come loose from the diaphragm, but is there. The hinge swivel joints are stiff and will require lubrication to have the weight float freely [we get that way too with age!]. The upper curved edge of the rim has been “cut” for some reason (100 years ago most likely) to allow for adjustments in the carrier arm. Some TLC will restore this “speaker” to its original glory. More information can be found in guides, manuals and reference books about Edison cylinder phonographs, reproducers and recorders. More photos are available by email upon request.