LBT-0712A Map Case:
Made from 420D Olive Drab nylon pack cloth. The LBT-0712A map case was meant to hold a topographical map as well as small items such as a combination ruler/protractor, pens and pencils. It can be folded to fit in a BDU pocket (source: http://webbingbabel.blogspot.com/2017/05/london-bridge-lbt-0712a-map-admin-case.html).
Buckle:
Tag:
Gold label tag with a 757 area code phone number was introduced in 1997 (source: https://www.facebook.com/groups/1942461055884525/posts/2302310143232946). The Fort Sherman, the US Military Base in Panama shown on the map, closed in 1999 (source: https://www.latimes.com/archives/la-xpm-1999-mar-26-mn-21238-story.html). This is how the date range in the page title was derived.
Map:
1982 date. The map shows the area around Ft. Sherman, on the northern (Caribbean) side of Panama. Fort Sherman was the location of the Jungle Warfare School (source: https://www.latimes.com/archives/la-xpm-1999-mar-26-mn-21238-story.html). Panama City, where most of the fighting took place during Operation Just Cause, the invasion of Panama (December 1989 – January 1990), is south of the area covered on the map.