Attica, Athens AR Tetradrachm (16.9g, 24mm, 2h). Circa 454 - 404 BCE.
Obverse: Head of Athena right, wearing crested Attic helmet ornamented with three laurel leaves and vine scroll.
Reverse: AΘE. Owl standing right, head facing; olive sprig and crescent moon behind, all within incuse square.
References: Sear GCV 2526; HGC 4, 1597; SNG Copenhagen 31-40; Kroll 8.
Provenance: Jackson & Jacobs Family Collection, purchased with my mother & father circa Aug. 1986 (to 1988?) at a Paris coin shop on la Rue Vivienne. (I could try to guess which, based on photos and trying to remember, but there are so many it's hard to be sure. Back then we didn't know how important it would become to record provenance. Just for fun, try: https://www.google.com/search?q=La+Rue+Vivienne+numismatique.)
Although both of my parents would take me to the coin shops while traveling (and to museums and bookstores and everywhere else), it was really my father who "collected" along with me. I'm sure my mother enjoyed it, and she still appreciates Greek coins (or seems to), but only my father was interested in building a coin collection and library.
Numis. Notes: Attractive, fine style Athena w/ subtle smile, well-centered on a compact flan (rev. slightly off-center). Nicely toned. Punch mark & scuff on reverse.