Make Your Own Working Paper Clock
ISBN: 9780060910662
出版社: Harper Paperbacks
出版年: 1983-10-14
页数: 40
定价: USD 16.95
装帧: Paperback
内容简介
Cut this book into 160 pieces, glue them together, and have a paper clock operated by weights that keeps perfect time and can be rewound and regulated.