In 1943, they again printed some primitive stamps in the newspaper office in Kyzyl.  

The method of production of these stamps was wonderfully documented by Cronin, showing the order in which the sheets were assembled and manufactured.  These stamps served Tuvan postal needs until their incorporation into the Soviet Union after WWII.  When the Soviets discovered the existence of these stamps, they took the remaining stock from Tuva and a couple of stamp dealers brought back the meager leftovers to the philatelic market.   I know of no rational explanation for these stamps not being listed by Scott.   They were postal and for the whole country (don't call them "locals"...they were domestically manufactured and good for postage to   anywhere)!

25K stamps were printed in black and slate blue.  Each sheet was a strip of five of the stamps.  They applied home-brewed gum to the backs of the black sheets but didn't continue this practice with the other stamps. [See the printing sheets]

They then printed this same design again in a green ink, along with a new 50K design also printed at the same time.

These made a little sheet of four stamps, but almost all of the sheets were immediately split in half (presumably so the postal clerks wouldn't get confused).  Pairs containing both values are very expensive, and complete sheets of the four values were once thought to not exist...now there are at least two that survive.  Note that most of the paper used was a yellowish brown, but some very white paper was also used