These Aria pedals were made from 1979-82, early in the piece for the very idea of an overdrive pedal. This one is more like a Boss OD-1 than a Tubescreamer, with a bright and snappy growl to it. Very cool.

Model: Aria AOD-1 Overdrive 
Made: Japan, 
Serial: 074987
Type: overdrive
Power Input: standard 9v DC centre-negative supply or 9v battery (not included)
Accessories: none

Condition notes: used, no major marks. Tested and fully functional.
Overall: very good condition (8/10)