Holey moley, an actually good design?!
Yes, it'll be something like that. How the secondary is returned (to which end of pri) is kind of whatever, it could be a standard flyback with the ends wired together (+V or GND), or in series as a tapped inductor (or boost with extended winding, same thing). The ratio will be in the 1:10 range give or take (flyback is pretty tolerant of ratio so it could be anything from say 1:5 to 1:40).
Part will either be standard for some other application (offline SMPS / phone charger would do; photoflash charger maybe; or maybe even CCFL, but those aren't used much anymore), or custom. Custom magnetics aren't exactly expensive so it could be whatever.
Taking it apart, measuring inductances, counting turns (and layer arrangement), measuring and looking up the core type, and air gap if possible, basically tells you everything you need to know about it.
Tim