目录
查看完整图片 — 免费注册
使用Google继续 — 免费
或用邮箱注册
为什么需要注册？只是为了防止机器人访问我们的目录。您的邮箱完全保密——我们绝不会分享或在未经您许可的情况下发送任何内容。我们向您保证！
| 正面描述 | 登录 以查看详情 |
|---|---|
| 正面铭文 | POLSKA WYTWÓRNIA PAPIERÓW WARTOŚCIOWYCH 012 Pszczoła miodna J. KOPECKA DEL. SC. K. MICHALCZUK SC. 012 (Translation: Polish Security Printing Works 012 Honeybee J. KOPECKA DEL. SC. K. MICHALCZUK SC. 012) |
| 背面描述 | Three intaglio vignettes of honeybee castes — worker, drone, and queen — arranged across the centre, each labelled in italic script below. A botanical sprig with a bee appears at left, decorative floral underprints border the right margin, and a descriptive text block in Polish cursive script occupies the lower centre. |
| 背面铭文 | 登录 以查看详情 |
| 签名 | 登录 以查看详情 |
| 防伪类型 | 登录 以查看详情 |
| 防伪描述 | 登录 以查看详情 |
| 变体 | 登录 以查看详情 |
| 备注 |
PWPW produces these test notes specifically to demonstrate and market their security substrate and printing capabilities to potential government clients — they are trade samples, not currency. The 2012 bee-themed piece was part of a broader push by PWPW to promote their proprietary polymer technology at a time when several central banks were actively reconsidering paper substrates. These notes were never intended for circulation and were distributed in limited quantities at industry events and to institutional contacts.
The inclusion of a watermark on a polymer substrate is the technical point of interest here — simulating a watermark effect on plastic film requires a different optical approach than traditional laid paper, and demonstrating it convincingly is precisely the kind of proof-of-concept these notes exist to provide.