Diterawang — held to light
Rectoverso (gambar saling isi)
Two complementary halves of one image, printed on the front and the back so that they lie exactly over one another.
One image is split in two, and each part printed on an opposite face. Light passing through the sheet superimposes them into a single shape for the reader.
What to observe
- 01Held to the light, the rectoverso of the BI logo closes into one complete shape.
- 02Viewed from one side alone, each part reads as a meaningless fragment. What is being checked is the precision with which they meet.
Appears on
This page explains how to check a feature, not how one is produced. Nor does this site say whether any note is genuine — that authority rests with Bank Indonesia.
Sources
- Bank Indonesia — Gambar Uang — Rp100.000 Tahun Emisi 2016, Unsur Pengaman ↗open source: Gambar Uang — Rp100.000 Tahun Emisi 2016
- Artech House — R. L. van Renesse, Optical Document Security, 3rd edition (2005), Ch. 5, See-through register