Vintage MXR Phase 100 pedal - 1980? Original, NOT a reissue!

Description

This is an original MXR Phase 100 pedal.  NOT a reissue version, this is the real deal!  No external power jack, no indicator light. Totally old school.  No apparent mods or tweaks.
The screws are period-correct replacements, but the two original screws are included.  (The other two are lost in time.)  As expected, the inside foam has completely disintegrated, but the inspection stickers are still intact.
There's a serial number stamp (7 029034), but no one seems to know what they mean, date-wise.  But the pot is xxx8002 which, as I understand it, means it was manufactured in Feb of 1980.  So the pedal likely was made in 1980? Nothing about the pedal suggests otherwise.  I've had it for decades.
It sounds awesome, with no issues. I played a Pink Floyd tribute show recently, and this was the sound!
Sold as is.