Toggle navigation
explore
parks
collections
reports and research literature
map
outreach
hosted mapping
how to participate
about
about opn
access OPN data via OAI
contact
navigating collections
using images
Search Results
Sort (Relevance)
Relevance
Title
Date
Items per page (20):
20
50
100
Page 1 of 1
7 Items
Jump to Page
View:
Refine Search
update
reset
Park
Mammoth Cave National Park
7
National Park Service
7
Collection
Mammoth Cave National Park Nitrate Negatives Collection
7
Date
From:
January
February
March
April
May
June
July
August
September
October
November
December
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Until:
January
February
March
April
May
June
July
August
September
October
November
December
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
topic
Building
1
Heating-pipes
1
Telephone lines
3
Telephone lines--Design and construction
1
Telephone switchboards
7
Telephone wire
1
Location
Place
Mammoth Cave National Park
7
County
Edmonson County
7
State
Kentucky
7
Country
United States
7
Type
Still Image
7
Medium
black-and-white negatives
7
Rights
U.S. Government Work
7
Telephone line construction, switchboard house for new telephone system, 1939
Mammoth Cave National Park; National Park Service
View on map
1939-09-12
Telephone line construction, switchboard house for new telephone system, 1939
Mammoth Cave National Park; National Park Service
View on map
1940-09-12
Showing the telephone wires being hooked up at the switchboard, 1939
Mammoth Cave National Park; National Park Service
View on map
1939-05-10
Telephone line construction, splicing underground cable at automatic switchboard house for new telephone system, 1939
Mammoth Cave National Park; National Park Service
View on map
1939-09-18
Telephone line construction, view in automatic switchboard house, scene shows telephone lines being tested, 1939
Mammoth Cave National Park; National Park Service
View on map
1939-11-2
Telephone line construction, laying rock wall for automatic switchboard building for new telephone system, 1939
Mammoth Cave National Park; National Park Service
View on map
1939-08-10
Telephone line construction, showing pipe line from furnace in hotel to automatic telephone switchboard house, a radiator has been installed in the switchboard house for heating it, 1940
Mammoth Cave National Park; National Park Service
View on map
1940-01-22
Telephone line construction, switchboard house for new telephone system, 1939
Telephone line construction, switchboard house for new telephone system, 1939
Showing the telephone wires being hooked up at the switchboard, 1939
Telephone line construction, splicing underground cable at automatic ...
Telephone line construction, view in automatic switchboard house, scene shows ...
Telephone line construction, laying rock wall for automatic switchboard ...
Telephone line construction, showing pipe line from furnace in hotel to ...
Sort (Relevance)
Relevance
Title
Date
Items per page (20):
20
50
100
Page 1 of 1
7 Items
Generously Supported By