The amp is made by HH Electronic, who no longer trade. The amp's power is 100W, with 2x12 speakers. You can choose to use one or both of these speakers at once, making it suitable for bedroom practice and gigging.
The HH IC100 was HH's first guitar amp, introduced in 1971 and manufactured until 1976. It was available as a head or as a 2x12 combo, all solid state.
The HH Electronic IC100-S solid state amplifier, manufactured between 1971 and 1975, is the more basic, stripped down version of the IC100, offering fewer features without compromising on the build quality.
The HH Electronic V-S Musician was first introduced in 1976 and I'm not sure how long it was in production for.