NOTICE POSTEDThis letter is official notification under Section 512(c) of the Digital Millennium Copyright Act (DMCA), and I seek the removal of the aforementioned infringing material from your servers. I request that you immediately notify the infringer of this notice and inform them of their duty to remove the infringing material immediately, and notify
A coupling (or a coupler) is a mechanism for connecting rolling stock in a train. The design of the coupler is standard, and is almost as important as the track gauge, since flexibility and convenience are maximised if all rolling stock can be coupled together.
