The Asahi Pentax AF200S flash has a guide number of 64. It has 2 auto options or Pentax TTL control. The auto is f2.8 or f5.6 for ASA 100 film.
The flash is used and in excellent condion. Looks almost like new other than part of the green square beside the settings switch worn off (can be seen in pic) and very minor battery corrosion (cleaned) to one of the springs. Takes 4 AA bateries which are not included.
Condition - A-