拍品描述： 1878年薄纸大龙无齿试版样票四方连全，均带纸边/直角边。龙爪左下小圈被移除。背轻贴。5分银背面重拼。 在大龙邮票铸模之时，1分银左下龙爪带有三个半小圈，3分银及5分银则为三个小圆。但在正式付印前，中间一小圈被被刮去。故凭小圈数量可知此为试版样票而非试模样票。1878 Thin Paper Large Dragon imperf plate proof block of 4 set with margin or corner margin, with extra circle near left claw removed. Lightly hinged. 5ca block repaired by tape on reverse. When the die of Large Dragon was producced, there were 3 and a half circle at the bottom left dragon claw on 1ca while 3 circles for 3ca and 5ca. However, the middle circle was removed before printing. Therefore, die proof and plate proof can be distinguished by the number of circles.

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