404. That’s an error.

The requested URL /bookmarks/mark?op=edit&output=popup&bkmk=http%3A%2F%2Fwww.practicalmachinist.com%2Fvb%2Fantique-machinery-history%2Fcincinnati-tool-master-vertical-mill-115138%2F&title=Cincinnati+Tool+Master+vertical+mill was not found on this server. That’s all we know.