VTG US Navy Civil Engineer Corps Subdued BDG Collar Device 3" ODG Sew‑On Patch

Vintage U.S. Navy Civil Engineer Corps (CEC) subdued embroidered BDG collar device patch on pre‑1989 ODG (OG‑107) utility‑uniform tape. Manufactured by Vanguard in regulation‑style construction. Measures 3" × 1" and features the black oak leaf over fouled anchor design used on Navy working and fatigue uniforms prior to the 1989 color transition. This is a single sew‑on patch, not a metal pin or clutch‑back item.
Sourced from an Army Navy Surplus Store and sold as a novelty collectible uniform device, not official issue.

FEATURES
- Item Type: Subdued embroidered BDG collar device
- Branch: U.S. Navy Civil Engineer Corps (CEC)
- Fabric: Vintage ODG / OG‑107 (Pre‑1989)
- Size: 3 × 1 in
- Colors: ODG with black embroidery
- Attachment: Sew‑on
- Manufacturer: Vanguard
- Classification: Novelty collectible; not official issue
- Source: Army Navy Surplus Store