They seem inspired by Soviet chess sets, like this one:
https://i.etsystatic.com/25908063/r/il/1a850f/3098976773/il_fullxfull.3098976773_rqms.jpg
More details:
https://sovietchesssets.com/2022/02/23/aristocratic-olympians-the-1980-minsk-olympic-set/
Identify Chess Sets - Are these real?!
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Are these chess sets even real? Closest real sets to these?
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