I found a RT101+ today but it doesnt look like my other one

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I do know that NMB aquired Hi-Tek but this keyboard has no mention of NMB at all

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- IMG_20190124_225730_resized_20190124_111739682.jpg (2.86 MiB) Viewed 1883 times
plus the keys are "stepped" which I cant find any examples of a RT101+ being like that.

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- IMG_20190124_225516_resized_20190124_112237539.jpg (3.67 MiB) Viewed 1883 times
What I'm asking is for some help on when this was manufactured and if anyone else has seen this design before (how this is different from most other RT101+). Thanks in advance.