The "Reverbmaster Series" 1742 model first appeared in the 1968 Rose-Morris Catalogue.
Electronically this amp is the same as the 1745 combo released the same year.
It's side panel construction with gold trim was a part of the new design aesthetic for Goldentone that could be seen on all models from '68 onward.
2 independent channel each with continuously variable volume, bass and treble controls. Channel 2 features the famous wide range tremolo and reverberation.
Remote control reverb and tremolo foot-switch (the egg)