A very nice ST SCHERR TUMICO 14 INCH HORIZONTAL BEAM OPTICAL COMPARATOR. Model #20-3500. S/N R803916.We cleaned this as had been in storage for some time and installed an ST DRO on the Acu-Rite .0001 scales.
A very nice ST SCHERR TUMICO 14 INCH HORIZONTAL BEAM OPTICAL COMPARATOR. Model #20-3500. S/N R803916.We cleaned this as had been in storage for some time and installed a MICRO-VU Q16 DRO on the Acu-Rite .0001 scales.
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