Looking for clones of ARISTO school slide rules.

Data:

• There are clones of ARISTOs for schools made in Japan and sold under a number of labels like 'intra', 'TS Emblem', 'HiV', 'Kent', 'Royal', and others, as well as unlabeled ones. The rules do not use the ARISTO names but own names, like 'Primus' instead of 'Scholar'; model numbers are often the same for different brands. The picture shows only a selection I have.

Questions:

1. Do you have any such ARISTO clones or have information about them?
2. What brands, model numbers and names are used?
3. In which countries / regions are particular models / brands sold?
4. Do you have any information about prices, in particular relative to ARISTO originals?
5. Do you know when these rules were made / sold?
6. Have you seen clone variants, which are close copies of ARISTOs with some differences in the scales?
7. Can you provide any pictures, of own specimen, from ebay etc offers, web sites, any other source? (For reference and comparison look at Rod Lovett's ARISTO collection online)
   
   
   Please report at workshop and send answers with pictures to karl@kkleine.de.