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Green Cove Springs in Clay County, Florida — The American South (South Atlantic)
 

5”38 Caliber Single Mount Dual Purpose Gun

Military Museum of North Florida

 
 
5”38 Caliber Single Mount Dual Purpose Gun Marker image. Click for full size.
Photographed by Brandon D Cross, July 13, 2021
1. 5”38 Caliber Single Mount Dual Purpose Gun Marker
Inscription.

The 5”38 is considered the best intermediate caliber dual purpose gun of World War II. It was in service from 1934 throughout the 1990s. In the naval gun measurement system the size of the gun is expressed as the diameter of its bore and the length of the gun. In this case the diameter is 5” and the length is 5” x 38 or 190”.

It can fire 12 to 15 rounds per minute and has a range of 10 miles. Its antiaircraft ceiling is 37,200 feet. It is separate loading meaning a projectile is loaded first then powder bag is loaded and the gun fired.
 
Erected by Military Museum of North Florida.
 
Topics. This memorial is listed in these topic lists: War, KoreanWar, VietnamWar, World II.
 
Location. 29° 58.796′ N, 81° 39.194′ W. Memorial is in Green Cove Springs, Florida, in Clay County. It is at the intersection of Bunker Avenue and Leonard C Taylor Parkway (Local Route 16), on the right when traveling south on Bunker Avenue. The marker is located on the grounds of the Military Museum of North Florida. Touch for map. Memorial is at or near this postal address: 1 Bunker Avenue, Green Cove Springs FL 32043, United States of America. Touch for directions.

Regionally, this memorial is in First Coast and in Greater Jacksonville. It is also in the American South. Globally, it is in the North Atlantic Region, North America, a Gulf of Mexico state, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once New Spain, the territory of the Mississippian Culture, one of the Confederate States of America, and the Antebellum South.

Other nearby markers. At least 8 other markers are within 2 miles of this marker, measured as the crow flies: “The Willys” (a few steps from this marker); Pratt Whitney R-2800 Twin Wasp Engine
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(a few steps from this marker); LARC-LX (a few steps from this marker); The M-170 Truck, Ambulance (a few steps from this marker); The Gama Goat (a few steps from this marker); M151 Series Military Utility Tactical Truck (a few steps from this marker); Benjamin Lee II Field (approx. 0.2 miles away); Veterans War Memorial (approx. 1.7 miles away). Touch for a list and map of all markers in Green Cove Springs.
 
Another marker is no longer nearby. Fort San Fransisco de Pupo (was approx. 1.4 miles away but has been confirmed missing).
 
Also see . . .  5”38 Caliber Gun. (Submitted on September 10, 2021, by Brandon D Cross of Flagler Beach, Florida.)
 
5”38 Caliber Single Mount Dual Purpose Gun and Marker image. Click for full size.
Photographed by Brandon D Cross, July 13, 2021
2. 5”38 Caliber Single Mount Dual Purpose Gun and Marker
 
 
Credits. This page was last revised on September 14, 2021. It was originally submitted on September 10, 2021, by Brandon D Cross of Flagler Beach, Florida. This page has been viewed 684 times since then and 52 times this year. Photos:   1, 2. submitted on September 10, 2021, by Brandon D Cross of Flagler Beach, Florida. • J. Makali Bruton was the editor who published this page.
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Jun. 5, 2026