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56mm edge length. Laminated paper stickers. Orange stickers (Wimpy) are also just standard laminated paper. The pictures on the stickers are similar to the other versions but are poor quality printing.
Text in yellow 'flash' on front face reads BY RID SAGNDORF
No ref obviously to King Features Syndicate USA.
This may be of interest to some.
This is what I have to add:
Version 1 is the Tsukuda version (with the correctly spelled name of Bud Sagendorf),
whereas version 3 with the misspelled name Rid Sagndorf is from ITC (shame on them!)
Version 3 from Ideal is a very good cube however, my best 2x2x2 by far, and the package reads King Features Syndicate.