Yes, have about 30 of them. Did have 6 teleprinters but couldn’t get the person who said they wanted them to collect, so went down the scrappy. As you say, zero value, zero interest, not even worth taking to pieces for the bits, just look at how they made 4000 parts to make a calculator for the price.
The John Wolffe web site on Canberra University (I think) is the one to look at, takes a Madas and Marchant to pieces, amazing.