(News from 우정사업본부 / KoreaPost) On 15 November 2019 KoreaPost issued a new postal card to commemorate the 2019 National Stamp Exhibition (2019 전국우표전시회). This was the first time in several years KoreaPost created a postal card for a stamp exhibition, the last cards for such an occasion having been produced in July 2016.
The card has an imprinted stamp with a value of 350 won:

The “stamp” as shown on the card plus details of this release:
2019 전국우표전시회
| |
|---|---|
| 발행량 | 22,000 |
| 발행일 | 2019. 11. 15. |
| 인면디자인 | 오문우표와 최초의 날짜도장 |
| 이면디자인 | 우정총국과 문위우표 |
| 액면가격 | 350 |
| 엽서번호 | 17022614 |
| 인쇄 및 색수 | 평판 5도 |
| 디자이너 | 박은경 |
| 용지 | |
| 인쇄처 | (재)한국우편사업진흥원 |
KoreaPost will issue a special cancellation for the exhibition, one for every day of the exhibition, which is available only at either the exhibition of Seoul central post office:

KoreaPost also issued an FDC cancellation, which is exclusively available at the central post office in Seoul:

To give an idea, here is the reverse of the 2016 card plus several examples of the front from the series of cards issued for the 2016 exhibition:

Images copyright KoreaPost.

