Have two, good condition, slight wear. One has sli corner bend, not on pic, and age spots on back. Other has very light marks from cancellation. Was mailed with 1c stamp. Mailed with 1c stamp.
Colors are nice.
Postmarked 1958, 6c airmail stamp with airplane. Couple of edge wears, postmark shows a bit. From the 50s. The world's first circular office building. A bit of wear.