Inquiry (采购产品): buttonhole pencil We are attempting to locate a mathematical puzzle pencil which was on the market for years, but seem to have vanished. It was known as a buttonhole pencil or a topological pencil. Can you please aim me in the direction of a source. Thank you. PS Starting Thursday, I will be out of town for a long weekend. **** Hidden Message ***** Charles Wolf 1605 Oregon Pike Lancaster, PA 17601 USA Company: Millersville University Retired Phone: 717-393-3331 E-mail: bigbadcwolf@comcast.net **** Hidden Message ***** bigbadcwolf@comcast.net
