You won't find a cleaner example of this classic, now discontinued microphone. This is the original model (superior to the current SX), considered a secret weapon for VO duties!

Absolutely Mint Condition!

From SOS review...

The E100S has been engineered and built entirely in the USA, and employs a brand‑new capsule and proprietary new circuitry, which together endow the mic with the lowest self‑noise floor in its class — a remarkable 3.7dBA. The published frequency response for the E100S is unbelievably flat from 40Hz to 4kHz. The first impression is of a 'vintage' sound character: it lacks the harsh brightness that is endemic in so many modern capacitor mics. It sounds full and rounded, but without being muddy or bloated in any way. The flat response below 4kHz lends male voices a relatively full lower‑mid body, verging on the 3D character of some of those revered classic vintage mics, while the presence peak brings out the diction very nicely, but without edginess. Its smooth but detailed sound character is quite ribbon‑like in some ways, and provides a perfect antidote for those who find the shrill brilliance of many modern capacitor mics too much in combination with squeaky‑clean digital recording systems. The E100S is a remarkably quiet mic, with a full-bodied and detailed sound and an ability to cope with silly sound levels. There's nothing in my mic collection that sounds quite like this, or is as universally useful as this mic.