Bausch & Lomb Spectronic 20 Colorimeter (title page verso) from Bausch & Lomb Spectronic 20 Colorimeter Cat No. 33-29-40, Reference manual. Rochester, New York: Bausch & Lomb Incorporated, [1962]. Note: The da More
Figure 1 - Schematic optical diagram from Bausch & Lomb Spectronic 20 Colorimeter Cat No. 33-29-40, Reference manual. Rochester, New York: Bausch & Lomb Incorporated, [1962], page 3. Figure caption reads: "FIG More
Figure 2 - Schematic electrical diagram from Bausch & Lomb Spectronic 20 Colorimeter Cat No. 33-29-40, Reference manual. Rochester, New York: Bausch & Lomb Incorporated, [1962], page 4. Figure caption reads: " More
Figure 3 - Spectronic 20 Colorimeter from Bausch & Lomb Spectronic 20 Colorimeter Cat No. 33-29-40, Reference manual. Rochester, New York: Bausch & Lomb Incorporated, [1962], page 5. Figure caption reads: "FIG More
Figure 5 - Bottom view from Bausch & Lomb Spectronic 20 Colorimeter Cat No. 33-29-40, Reference manual. Rochester, New York: Bausch & Lomb Incorporated, [1962], page 7. Figure caption reads: "FIGURE 5 - BOTTOM More
Figure 7 - Inside front view from Bausch & Lomb Spectronic 20 Colorimeter Cat No. 33-29-40, Reference manual. Rochester, New York: Bausch & Lomb Incorporated, [1962], page 10. Figure caption reads: "FIGURE 7 - More
Figure 8 - Inside rear view from Bausch & Lomb Spectronic 20 Colorimeter Cat No. 33-29-40, Reference manual. Rochester, New York: Bausch & Lomb Incorporated, [1962], page 12. Figure caption reads: "FIGURE 8 - More
Figure 9 - Printed amplifier circuit from Bausch & Lomb Spectronic 20 Colorimeter Cat No. 33-29-40, Reference manual. Rochester, New York: Bausch & Lomb Incorporated, [1962], page 12. Figure caption reads: "FI More
Sample curve from Bausch & Lomb Spectronic 20 Colorimeter Cat No. 33-29-40, Reference manual. Rochester, New York: Bausch & Lomb Incorporated, [1962], page 15. Title reads: "SAMPLE CURVE". The X-axis is label More