50 Baht Polymer Banknote

50 Baht Polymer Banknote : Security Features

50 Baht Polymer Banknote

Size : ​72 x 150 mm.

Issue Date : ​​November 21, 2025

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Front

The portrait of His Majesty King Maha Vajiralongkorn Phra Vajiraklaochaoyuhua in the Royal Thai Air Force uniform.

 

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Back

The portraits of His Majesty King Nang Klao (King Rama III) and His Majesty King Mongkut (King Rama IV).

Feel the Banknote

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Substrate

Polymer is a special type of plastic with a coated surface. It is tough, durable, long-lasting, and more resistant to counterfeiting.

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Raised Print

Raised prints can be easily sensed around the portrait of the King, the royal emblem, denomination in words and numerals.

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Embossed Number

​The upper clear window with the embossed “50”, can be identified by touch.

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Raised Lines

There are raised lines with 4 transparent diagonal lines on the left and right edges of the front side of the note, which can be easily touched and felt.

 

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Tactile Marks

Two tactile marks in the shape of flowers, representing the braille’s number “5”, can be identified by touch. 

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Tactile Emboss

Two tactile emboss, representing the braille’s number “5”, can be identified by touch. 

Look and hold the note against the light

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Clear Windows

“Clear windows” can be seen through from both sides. The lower clear window exhibits color-shifting effect. 

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Shadow Image

HM the King's portrait shadow image can be clearly observed on both sides when viewing the note against the light.

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Magnetic Printed Thread

Magnetic printed thread that contains numerals and letters denoting the banknote’s denomination that can be seen by viewing the design against the light.

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See-through Register

A completed front and back registered design is printed by a specially designed printing press at the dry offset printing stage. This printing press can print color patterns on both sides of the sheets simultaneously, which can be seen by viewing the design against the light. 

Tilting the Note

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Clear Windows

“Clear windows” can be seen through from both sides. The lower clear window exhibits color-shifting effect. 

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Latent Numbers

The hidden Arabic numerals in the elaborate pattern are on the lower center of every banknote. These latent numbers can be seen when the note is viewed from the lower left or right corner towards the middle part of the note.

  • Special Features Visible under the UV Light

The solid distinguishing mark in the middle of banknote, denomination numerals, serial numbers become visible. The fibers embedded in the paper become visible in yellow, red and blue.

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