Monogram 1/48 Cessna A-37 Dragonfly
With the help of aftermarket decals, this was built as an OA-37, as pictured on the back cover of the A-37/T-37 Dragonfly in Action. These replaced the OV-10 in the FAC role with the 19th TASS, based at Osan AB, South Korea,.
The kit was copyrighted 1992, and I think was one their nicest productions. I've done two, and have one more in the stash. It comes with a ton of stores, and a lot of detail. There are two decal options with the kit, but you may find aftermarket sets still available.
The A-37 went together fairly easy, with little filling. It sits very low, but still needs weight. With a little effort it turns out to be a nice addition to any collection.