Document Type:
File Type:
jpg (image/jpeg)
File Size:
765.81 KB
Optics
Fort Gratiot - Installation Of Electric Lamp & Mirror
Year of Photo / Document:
1926.05.12
Document Type:
File Type:
jpeg (image/jpeg)
File Size:
1.68 MB
Fort Gratiot - Plan Of Top Ring & Lens
Year of Photo / Document:
1891.12.19
Document Type:
File Type:
jpeg (image/jpeg)
File Size:
1.76 MB
Fort Point - 4th Order Lens
Year of Photo / Document:
1911.11.28
Document Type:
File Type:
jpeg (image/jpeg)
File Size:
462.21 KB
Fort Point - Henry Lepaute Maker's Mark
Document Type:
File Type:
jpg (image/jpeg)
File Size:
2.63 MB
Fort Point - Lens in Lantern Plans
Document Type:
File Type:
jpeg (image/jpeg)
File Size:
32.43 MB
Fourteen Foot Bank - Lens - Views of Tanks & Connections
Year of Photo / Document:
1917.11.03
Document Type:
File Type:
jpeg (image/jpeg)
File Size:
1.27 MB
Fourteen Foot Shoal - Lantern Lens Switch Board & Wiring Diagram
Document Type:
File Type:
jpeg (image/jpeg)
File Size:
1.2 MB
Fowey Rocks - Measurements for Revolving Apparatus
Year of Photo / Document:
1914.06.10
Document Type:
File Type:
jpeg (image/jpeg)
File Size:
3.71 MB
Galveston Jetty - Lens Diagram
Year of Photo / Document:
1929.01.07
Document Type:
File Type:
jpeg (image/jpeg)
File Size:
2.42 MB
Gay Head - Chariot Wheels
Document Type:
File Type:
jpeg (image/jpeg)
File Size:
579.03 KB
Gay Head - Henry Lepaute Lens Maker Badge
Document Type:
File Type:
jpg (image/jpeg)
File Size:
550.59 KB
Gay Head - Kerosene Lamp In Action
Year of Photo / Document:
1953.06.14
Document Type:
File Type:
png (image/png)
File Size:
5.18 MB
Gay Head - Lens Base
Document Type:
File Type:
jpeg (image/jpeg)
File Size:
921.49 KB
Gay Head - Lens On Display
Year of Photo / Document:
2001
Document Type:
File Type:
jpg (image/jpeg)
File Size:
453.49 KB
Gay Head - Red Lens
Document Type:
File Type:
jpeg (image/jpeg)
File Size:
569.02 KB
Goose Rocks - Red Sector Panels
Document Type:
File Type:
jpg (image/jpeg)
File Size:
80.91 KB
Graves - Illuminating Apparatus
Document Type:
File Type:
jpeg (image/jpeg)
File Size:
5.52 MB
Grays Harbor - Bullseye
Year of Photo / Document:
2017
Document Type:
File Type:
jpeg (image/jpeg)
File Size:
701.49 KB
Grays Harbor - Lens (Broken Elements)
Year of Photo / Document:
1911.02.06
Document Type:
File Type:
jpeg (image/jpeg)
File Size:
1.08 MB
Great Point - Modern Lens & Red Sector
Document Type:
File Type:
JPG (image/jpeg)
File Size:
4.02 MB
Grosse Point - Inside The Lens
Document Type:
File Type:
jpg (image/jpeg)
File Size:
155.29 KB
Halfway Rock - Lens
Document Type:
File Type:
JPG (image/jpeg)
File Size:
149.81 KB
Halfway Rock - Life On A Lighthouse (Parade Magazine, 5 of 15)
Year of Photo / Document:
1942
Document Type:
File Type:
jpg (image/jpeg)
File Size:
1.69 MB
Harbor Beach - Bottom Casting For US Lens Lantern With AGA Equipment
Year of Photo / Document:
1911.10.12
Document Type:
File Type:
jpeg (image/jpeg)
File Size:
1.86 MB
Heceta Head - Alert To Previous Telegraph
Year of Photo / Document:
1892.08.07
Document Type:
File Type:
jpeg (image/jpeg)
File Size:
532.67 KB
Heceta Head - Illuminated Lens
Document Type:
File Type:
jpeg (image/jpeg)
File Size:
613.53 KB
Heceta Head - Recommendation For Light Change
Year of Photo / Document:
1892.08.03
Document Type:
File Type:
jpeg (image/jpeg)
File Size:
430.55 KB
Hen And Chickens - Parabolic Reflector Lights
Document Type:
File Type:
png (image/png)
File Size:
3.13 MB
Hereford Inlet - Display in Lighthouse
Year of Photo / Document:
2008
Document Type:
File Type:
jpg (image/jpeg)
File Size:
1.79 MB
Highland - cross section of tower 1907
Year of Photo / Document:
1907.03
Document Type:
File Type:
jpg (image/jpeg)
File Size:
3.68 MB
Hillsboro Inlet - Electric Control to Main Light
Year of Photo / Document:
1933.02.13
Document Type:
File Type:
jpeg (image/jpeg)
File Size:
716.93 KB
Hillsboro Inlet - Lamp Stand For Electric Lights
Year of Photo / Document:
1931.12.11
Document Type:
File Type:
jpeg (image/jpeg)
File Size:
404.73 KB
Hillsboro Inlet - Light Schematic Diagram Alarm & Power Transfer Circuit
Year of Photo / Document:
1932.12.08
Document Type:
File Type:
jpeg (image/jpeg)
File Size:
1.44 MB
Hog Island - Lens Bearings & Jacks
Year of Photo / Document:
1918.05.14
Document Type:
File Type:
jpeg (image/jpeg)
File Size:
1.47 MB
Horn Island - Illuminating Apparatus
Year of Photo / Document:
1912.05.14
Document Type:
File Type:
jpeg (image/jpeg)
File Size:
1.38 MB
Horn Island - Spherical Glass Mirror
Year of Photo / Document:
1929.01.28
Document Type:
File Type:
jpeg (image/jpeg)
File Size:
909.39 KB
Horseshoe Range, East Group, Upper Front - Occulting Shade For Locomotive Light
Year of Photo / Document:
1909
Document Type:
File Type:
jpeg (image/jpeg)
File Size:
567.05 KB
Indiana Harbor East Breakwater - Sectional Plan of Lens
Year of Photo / Document:
1928.06.23
Document Type:
File Type:
jpeg (image/jpeg)
File Size:
863.66 KB
Installation Of Revolving Beacons
Year of Photo / Document:
1934.09.13
Document Type:
File Type:
jpeg (image/jpeg)
File Size:
1.07 MB