Need QRX 999 Historian

The QRX 999 in this pic has the lettering SIERRA on the tuning face plate. I have never seen this on any other QRX 999 or QRX 9001 for that matter. Why does this particular unit have the SIERRA text and the others not? A Google search did not yield any information. It will probably take a hard core Sansui historian to solve this one. Thanks!

I found this ; This unit features "Peak Range" tuning aptly called Sierra and is a wonderfully neat visual as you tune to your station. From the literature with the unit:"The "Peak Range" dial pointer runs across the dial panel in an up and down pattern. If the peaks and valleys of the dial were stretched out you would have a dial much longer than available on any other receiver. Thus, as you turn the high-inertia tuning knob and observe the brightly illuminated scale, the task of fine tuning is greatly simplified. Lines running across the panel aid tuning even more, each representing a 250kHz calibration.

never heard of that before - only on euro models?

ssgirl

It turned out to be a sticker placed there by an electronics vendor.