[bezelbub]

The only platinum-iridium bar, the NIST seems to have, is the prototype meter No. 27 which the U.S. received in 1889. In this year, the yard was defined to be 3600/3937 meter. This definition was used by the National Bureau of Standards / National Institute of Standards and Technologies until 1959.
They do have a brass bar, dating from 1815...

[editor-surveyor]

Nuff of your game idiot.