| Technical |
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|
|
938 - Bush Kaleidoscope |
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|
914 -
Parlor Kaleidoscope |
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|
941 - Stereo Slide Viewer with Slides |
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949 - Folding Naturalist's Microscope with Case |
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823 -
Slide Set of Bee Parts |
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885 -
Double Pillar Microscope |
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|
|
965 - Microscope Specimen Clip |
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698-1
Microscope Slides Algae/Diatom |
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698-2
Microscope Slides Beetles |
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|
|
698-3
Microscope Slides |
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|
|
698-5
Microscope Slides |
 |
|
943 - Pocket Barometer/Altimeter |
 |
|
944 - Pocket Barometer/Altimeter |
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|
|
933 - Garment Drafting Machine |
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|
|
699 -
Rolling Parallel Rule |
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876 -
Drafting Set |
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|
948 - Bronze & Steel Calipers |
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|
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847 - Ivory Sector |
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848 - Ivory Sector |
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|
|
850 - Ivory Sector J & W. E. Archbutt |
 |
| 854 - Ruler - US Army Corps of Engineers |
