See image for cover condition, #477, 'C' Edition, name in bookplate, pages are clean and nice although tanned from age as expected, 29c orig. price, 24 pages
By Ann McGovern with Pictures by Harvey Eisenberg and Al White.
Story begins: The sign on the door said "Professor Gizmo-Scientist and Inventor." Ruff and Reddy knocked once, twice, three times...
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