Guyatone Rolly Box Phase Sonix Phaser Pedal 1979

Guyatone Box Series pedals came out in the late 70s and are increasingly collectable; they're terrific sounding units and they have a certain swagger about them. This is a gorgeous sounding phaser: kinda understated and natural, warm and wobbly... sounds great. Plus, has a pedal ever had a better name than 'Rolly Box'?

Model: Guyatone Rolly Box Phase Sonix Phaser 
Made: Japan, 1979 approx
Serial: N/A
Type: phaser
Power: 9v battery only (not included)
Accessories: none

Condition notes: used, few minor marks. Tested and fully functional.
Overall: good condition (7/10)