cover 1919 and 1920 XU5 ex the same correspondence to Copenhagen, the first registered, showing Russian Censor cachet and bearing Norwegian 20ore (uncancelled) and 10ore cancelled at Vardo; the latter endorsed "Via Norge-Vardo" and bearing imperf. 70k. corner pair with Norwegian 10ore (also cancelled at Vardo). Unusual. The rare emergency route via Northern Norway.