First up is a Heathkit IO-104. When I first tried to search the internet for this guy, I misread the model as "10-104", which resulted in some confusion. The difference between I and 1 now seems pretty obvious, but to be fair the difference between 0 and O in the chosen font is only one of magnitude.
Simple, and attractive. Unfortunately, this model is single trace, so it probably won't be a trade candidate. Already on the desk, and extremely easy to open up (facilitated farther by a missing chassis screw), so let's see what's going on inside.