US Army 4th Infantry Division Subdued Patch Vietnam Era OD Sew‑On 2‑5/8"

Vintage U.S. Army 4th Infantry Division shoulder sleeve insignia patch in the subdued Vietnam‑era style. The design features the division’s distinctive four ivy leaves, forming a visual pun on the Roman numeral IV, representing the unit’s numerical designation.
This version is embroidered in dark green thread on an olive drab (OD) background, typical of subdued insignia worn on fatigue shirts, jungle jackets, and field uniforms during the 1960s and Vietnam War period.
Patch measures approximately 2‑5/8" × 2‑5/8" and is the sew‑on type.
Sourced from an Army Navy Surplus Store and sold as a novelty collectible uniform patch, not official issue.

FEATURES
- Unit: 4th Infantry Division (“Ivy Division”)
- Era: Vietnam War era style
- Insignia: Four ivy leaves (IV)
- Colorway: Dark green on OD green
- Size: 2.625" × 2.625"
- Attachment: Sew‑on
- Construction: Embroidered
- Classification: Novelty collectible; not official issue
- Source: Army Navy Surplus Store