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Walter Ruffler
Walter Ruffler is the author of "Paper Models That Move" and "Paper Automata Mechanisms".
Books by Walter Ruffler
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Paper Models That...
Ruffler, Walter
Paperback:
Paper Automata Me...
Ruffler, Walter
Hardback:
$24.00
Paper Models That...
Ruffler, Walter
Paperback:
$25.95