The picture below is the 1962 Scott #429 / KSC #393 imperforated 10 jeon “Launch of Soviet Manned Rockets Vostok 3&4”. The KSC does mention an imperforated version. However, the Scott catalog does not mention an imperforated version of this stamp. I wonder how many of our readers have seen or possess this stamp?

Examples of domestic postal use of the stamp would be especially interesting.
There are so many different varieties of imperforated issues from both North and South Korea ( from 1946) that Scott decided not to list them. It would be great if someone issued a specialized catalog of these imperforated stamps, but to my knowledge, there has been one. If any reader knows of one, please let us know.
There is a couple of FDCs on Delcampe featuring the imperforated version. Selling prices range from €7 to €10. Just search ‘Korea FDC 1962’.