Add to Cart Quick view Vintage Appeture Inserts for Vintage Photo Measuring Device 1, 2 15 n 30 Degrees Vintage Was: $68.00 Was: $150.00 Vintage Appeture Inserts for Vintage Photo Measuring Device 1, 2 15 n 30 Degrees These are accessories for old vintage spectrometer or photometer of some kind. One side has mirror other side appears... 21131 SKU: 21131 Weight: 3.00 LBS