Although at first glance the images in this album may appear to be pen pocket patches (PPPs), these are much larger than those, and worn on the square loop patch on the shoulder (top of sleeve). Also, unlike some PPPs that contain art, these patches display only numbers and/or letters. There is a wide variety of these, but to qualify for inclusion in this gallery the patch must relate to missiles. Most duty patches worn in the Air Force missile community are in the Operational Camouflage Pattern (OCP), and two versions in that pattern are known to exist (e.g., see the ICBM patch). According to The Institute of Heraldry, the only appropriate OCP colors are spicebrown, bagby green, olive drab, and black. A few duty Identifier patches first appeared in the mid-2000s, but most came on the scene in the late 2010s shortly after the OCP color scheme was introduced in 2018. The patches are presented here in numerical/alphabetical order.