Description

MSA M13A2 Filter Case – Sealed 10 Pack 1985

MSA M13A2 Filter Case – Factory Sealed

The MSA M13A2 filter case contains ten original U.S. military chemical and biological filter sets. This factory sealed case is marked Part No. 303924, Lot MSA-8-199, and cure date August 1985. All information matches known Cold War production specifications.

Manufactured by Mine Safety Appliances, these filters supported U.S. military mask systems during the 1980s. At that time, chemical defense readiness remained a priority. Therefore, bulk-packed sealed cases rarely surface intact today.

The original factory tape still seals the carton. The box shows no water damage. It exhibits no sun bleaching or fading. As a result, the case retains strong display integrity.

M13A2 Military Filter Specifications

Each MSA M13A2 filter inside the sealed case was packaged to MIL-B-117E Type 1, Class E, Style 1 standards. This barrier packaging protected filtration media from moisture and contamination. Consequently, the internal filter sets remain undisturbed since 1985.

Case markings include:

MSA Part No. 303924
Lot: MSA-8-199
Cure Date: 8/85

The exterior carton remains solid and square. All printing remains clear and legible. Additionally, the original sealing tape confirms the case has not been opened.

Cold War Bulk Issue Collectible

During the late Cold War, military supply chains distributed protective filters in bulk quantities. A sealed MSA M13A2 filter case represents that logistical history. Unlike individual loose filters, a full unopened case demonstrates authentic storage and issue format.

Collectors value sealed cartons because they confirm untouched contents. Furthermore, a ten-pack case offers strong visual impact in display settings. It pairs naturally with protective masks, field gear, and decontamination equipment from the same era.

Because the case remains factory sealed, it provides both historical and archival appeal. Serious Cold War collectors seek intact bulk packaging like this example.