1972 Soviet postage stamp commemorating the Mars 2 probe

worth a read

Mars For The Rest of Us — a weekly-or-more deep dive on the technical side of Mars exploration: rocket propulsion, microbiology, mission architecture, and everything in between. Written by Maciej Ceglowski.

Read it on Substack →

Where’s Waldo

Written by

in

What’s unusual about this sheet of 100 ruble RSFSR stamps?

Because of printers mistake a single 70 ruble stamp made it into a 100 die plate. A regular 70 ruble stamp is purple.
I’ve purchased this sheet for $20 on ebay.

1972 Soviet postage stamp commemorating the Mars 2 probe

worth a read

Mars For The Rest of Us — a weekly-or-more deep dive on the technical side of Mars exploration: rocket propulsion, microbiology, mission architecture, and everything in between. Written by Maciej Ceglowski.

Read it on Substack →