I notice that the G81-3000 page doesn't have any pictures of the insides of any of the examples, several don't show the labels (you may not realise this, but the labels on Cherry keyboards generally give the date of manufacture) and only one example even demonstrates the type of switch and keycaps used. You may as well add as many photos of yours as you can. If in doubt, include every detail, because other people will always notice things that you don't in the pictures, maybe now, but more often years later when the person who took them has long gone and there's no way to obtain the missing details. (When I came to compile the
MY usage chart I found that almost every example of a G81 keyboard lacks the date and/or switch.)
As for the Videoton (that name rings a bell — some Hungarian manufacturer apparently) there's something odd about the photo. It looks like rubber domes go over the top of the LEDs, but that would be weird. I can't work out what I'm looking at. Sometimes you can ID a keyboard from the PCB codes — for example a Chicony-made Cherry keyboard I had (at a time when we didn't realise this was a thing), ID'd solely off the obscure codes on the PCB that followed Chicony's pattern. So long as all the details are recorded somewhere, you can come back to it at a later date.
I think I tried a keyboard with similar caps once and found it quite soft, with a cushioned feel but not much tactility - but what with rubber's tendency to degrade, "your mileage may vary"...
