유피유창설75주년 기념우표 청색 2중 인쇄 에러

<p>유피유창설75주년 기념우표 청색 2중 인쇄 에러입니다. 우문관 우표 도감도 피해갈 수 없는 청색 2중 인쇄에러입니다.</p><p>특징을 보면 75E ANNEE DE L' UPU의 ANNEE의 NN이 떨어져 있으면 정상, NN어 붙어 있으면 2중 인쇄입니다.</p><p>시중에 보이는 초일 봉투에도 2중 인쇄가 첩부 되어 있고, 전지도 2중 인쇄, 무공도 2중 인쇄입니다.</p><p>분명히 정상 인쇄가 초판일 텐데 이 현상을 어떻게 해석해여 하나 상당히 고민이 됩니다.</p><p>좌측이 정상 우표, 우측이 청색 2중 인쇄 에러</p><div class="figure-img" data-ke-type="image" data-ke-style="alignLeft" data-ke-mobilestyle="widthOrigin"><img src="https://t1.daumcdn.net/cafeattach/1ZNZV/55a2dff96f0fe4e8388cf6a229a77bb9f18f898b" class="txc-image" data-img-src="https://t1.daumcdn.net/cafeattach/1ZNZV/55a2dff96f0fe4e8388cf6a229a77bb9f18f898b" data-origin-width="590" data-origin-height="242"></div><p>정상 인쇄, ANNEE가 뚜렷합니다.</p><div class="figure-img" data-ke-type="image" data-ke-style="alignLeft" data-ke-mobilestyle="widthOrigin"><img src="https://t1.daumcdn.net/cafeattach/1ZNZV/027b2fba475cc9d3b043ad2f0e5733597536bf89" class="txc-image" data-img-src="https://t1.daumcdn.net/cafeattach/1ZNZV/027b2fba475cc9d3b043ad2f0e5733597536bf89" data-origin-width="313" data-origin-height="242"></div><div class="figure-img" data-ke-type="image" data-ke-style="alignLeft" data-ke-mobilestyle="widthOrigin"><img src="https://t1.daumcdn.net/cafeattach/1ZNZV/321ef211b040a484457767f8389e8640974d874b" class="txc-image" data-img-src="https://t1.daumcdn.net/cafeattach/1ZNZV/321ef211b040a484457767f8389e8640974d874b" data-origin-width="172" data-origin-height="100"></div><p>청색 2중 인쇄 에러, ANNEE의 NN이 붙어 있습니다.</p><div class="figure-img" data-ke-type="image" data-ke-style="alignLeft" data-ke-mobilestyle="widthOrigin"><img src="https://t1.daumcdn.net/cafeattach/1ZNZV/4266a6adb255142ee21cedab2d202c420d0fd4fd" class="txc-image" data-img-src="https://t1.daumcdn.net/cafeattach/1ZNZV/4266a6adb255142ee21cedab2d202c420d0fd4fd" data-origin-width="267" data-origin-height="232"></div><div class="figure-img" data-ke-type="image" data-ke-style="alignLeft" data-ke-mobilestyle="widthOrigin"><img src="https://t1.daumcdn.net/cafeattach/1ZNZV/68093b4e6b03150503519dc7233078f1d9a139a2" class="txc-image" data-img-src="https://t1.daumcdn.net/cafeattach/1ZNZV/68093b4e6b03150503519dc7233078f1d9a139a2" data-origin-width="172" data-origin-height="100"></div><p> </p><p>청색 2중 인쇄 및 다중 인쇄</p><div class="figure-img" data-ke-type="image" data-ke-style="alignLeft" data-ke-mobilestyle="widthOrigin"><img src="https://t1.daumcdn.net/cafeattach/1ZNZV/09cb4877d5a6752213d7bd2b6ad7d7744601ed82" class="txc-image" data-img-src="https://t1.daumcdn.net/cafeattach/1ZNZV/09cb4877d5a6752213d7bd2b6ad7d7744601ed82" data-origin-width="460" data-origin-height="209"></div><p>청색 2중 인쇄 전지</p><div class="figure-img" data-ke-type="image" data-ke-style="alignLeft" data-ke-mobilestyle="widthOrigin"><img src="https://t1.daumcdn.net/cafeattach/1ZNZV/a10fa9ed75f1591e6314772bdb1ac0b2d52ac255" class="txc-image" data-img-src="https://t1.daumcdn.net/cafeattach/1ZNZV/a10fa9ed75f1591e6314772bdb1ac0b2d52ac255" data-origin-width="789" data-origin-height="663"></div><p>청색 2중 인쇄 초일 봉투</p><div class="figure-img" data-ke-type="image" data-ke-style="alignLeft" data-ke-mobilestyle="widthOrigin"><img src="https://t1.daumcdn.net/cafeattach/1ZNZV/64eb1a1048256c8530f496ed5113a15f47326595" class="txc-image" data-img-src="https://t1.daumcdn.net/cafeattach/1ZNZV/64eb1a1048256c8530f496ed5113a15f47326595" data-origin-width="778" data-origin-height="540"></div><p>무공 단편, 2련이 아니어도 청색 2중 인쇄</p><div class="figure-img" data-ke-type="image" data-ke-style="alignLeft" data-ke-mobilestyle="widthOrigin"><img src="https://t1.daumcdn.net/cafeattach/1ZNZV/410b41f9655e9e9713261a3a36f9e2832cbe2688" class="txc-image" data-img-src="https://t1.daumcdn.net/cafeattach/1ZNZV/410b41f9655e9e9713261a3a36f9e2832cbe2688" data-origin-width="181" data-origin-height="148"></div><p> </p>