BOSS used an enclosure that was originally intended for being used as a two-knob pedal. The serial number of this Flanger dates back to June 1981, so this is quite an early BF-2. Apparently there was an overstock of enclosures of the OD-1 or PH-1 that were already "replaced" by the SD-1 and PH-1R. My wife says that the spot around the switch is not really green as I thought the whole time (I'm quite colour-blind!). So maybe that is only the colour of the ground coat. A very sloppy paint job for a BOSS pedal, I must say!

Have you seen something similar?