Railroad chronometer (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Railroad chronometer" in English language version.

refsWebsite

Global rank English rank

low place

low place

2web.archive.org

1^st place

1^st place

1books.google.com

3^rd place

3^rd place

340^th place

295^th place

1elginwatches.org

low place

low place

237^th place

170^th place

books.google.com (Global: 3^rd place; English: 3^rd place)

Google Books – American Railway Association – "Historical Statement" Page 8

elginwatches.org (Global: low place; English: low place)

The Elgin Watch Collectors Site "Elgin Watches" Archived 2010-08-19 at the Wayback Machine

navy.mil (Global: 237^th place; English: 170^th place)

tycho.usno.navy.mil

U.S. Naval Observatory "History" Archived 2017-12-19 at the Wayback Machine

nawcc.org (Global: low place; English: low place)

mb.nawcc.org

National Association of Watch and Clock Collectors "Railroad Time Service"
National Association of Watch and Clock Collectors "Waltham Watches"

si.edu (Global: 340^th place; English: 295^th place)

americanhistory.si.edu

National Museum of American History "Watch, Railroad Model Pocket Watch"

web.archive.org (Global: 1^st place; English: 1^st place)

The Elgin Watch Collectors Site "Elgin Watches" Archived 2010-08-19 at the Wayback Machine
U.S. Naval Observatory "History" Archived 2017-12-19 at the Wayback Machine