1. Overview & Key Challenges / 概述与主要挑战
Due to high market value, classic and early PRC stamps (such as the 1980 T.46 Monkey Stamp, Cultural Revolution series, and Mei Lanfang miniature sheet) are prime targets for counterfeiters. Authentication requires examining print processes, paper structure, gum, and security markers.
鉴于极高的市场价值，中国早期邮票及文革票、特种邮票（如1980年庚申年猴票、梅兰芳舞台艺术小型张等）常成为伪造的重灾区。鉴别真伪需要结合印刷工艺、纸张纤维、背胶以及防伪暗记进行综合比对。
|
Core Authentication Steps / 核心鉴定步骤
Step 1: Printing Process Analysis / 1. 印刷工艺比对
English: Genuine classic stamps usually utilize Photogravure or Engraving (intaglio). Engraved stamps feature tactile, raised ink lines under magnification. Counterfeits often use modern offset or inkjet printing, showing flat dots under 30x zoom.
中文： 正品早期邮票多采用雕刻版或影写版（凹印）。雕刻版在高倍放大镜下可见明显的墨层凹凸感；伪造品多采用现代胶印或数码喷墨印刷，网点分布平坦无立感。
|
Step 2: Paper & UV Fluorescence / 2. 纸张与荧光检测
English: Authentic stamps use special dedicated philatelic paper without optical brighteners. Under a UV light (365nm), fake stamps made with commercial paper often emit bright blue fluorescence. Genuine stamps are generally inert unless special fluorescent ink was applied.
中文： 常用邮票采用无荧光增白剂的专用邮政纸张。在 365nm 紫光灯下，使用普通商业纸张伪造的邮票通常呈亮蓝色荧光反应；而真票纸张多呈暗淡无荧光反应（特种荧光防伪墨除外）。
|
Step 3: Perforation & Size / 3. 齿孔与规格测量
English: Authentic perforations are neat, round, and precise (measured using a perforation gauge). Re-perforated stamps often display uneven tooth spacing, ragged edges, or incorrect hole diameters.
中文： 真票齿孔规则均匀，打孔边缘光滑自然。修补打孔（改齿）的伪品往往齿距不符、孔径偏小或边缘撕裂极不自然，可使用专业齿孔尺精准量度。
|
Step 4: Micro-printing & Secret Marks / 4. 微缩文字与暗记
English: Modern PRC issues from 1996 onwards include micro-printed serial numbers, fluorescent anti-counterfeiting fibers, and custom security codes embedded in the design layer.
中文： 1996 年后的中国邮票普遍加入了微缩文字、荧光防伪纤维、荧光喷码以及特定部位的版纹暗记，在高倍放大镜下线条清晰可辨。
|
|
Case Study: 1980 T.46 Monkey Stamp / 典型案例：T.46 庚申年猴票
• Hair Line Texture (毛发质感): The genuine monkey stamp features clear, distinct black fur lines printed in red and black engraved layers. Fake ones appear blurry or merged.
• Red Ink Bleed (红墨渗迹): The back of a genuine monkey stamp usually exhibits natural light red ink bleed marks from the heavy engraving process.
• 真猴票的毛发极具立体感，红黑双色雕刻版层次分明，假票多为胶印印刷，毛发糊成一片。
• 由于当时雕刻版油墨较厚，真票背面通常能看到自然的红油墨透印痕迹。
|
|
