# The archive sold on 20 November 2025 included Sanborn's handwritten K4 plaintext and the original K4 coding…

> The archive sold on 20 November 2025 included Sanborn's handwritten K4 plaintext and the original K4 coding system.

Source: https://mysteriesdept.com/mysteries/kryptos/evidence/EVD0D7HTA0E405P/the-archive-sold-on-20-november-2025-included-sanborns  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Kryptos](https://mysteriesdept.com/mysteries/kryptos)Evidence

Evidence · Kryptos

# The archive sold on 20 November 2025 included Sanborn's handwritten K4 plaintext and the original K4 coding…

The archive sold on 20 November 2025 included Sanborn's handwritten K4 plaintext and the original K4 coding system.

Established0

## What it bears on 1 answer

[K4's plaintext and method are known to a few holders and deliberately unpublished.](https://mysteriesdept.com/mysteries/kryptos/answers/ANS0D7HT9RM4MAQ/k4s-plaintext-and-method-are-known-to-a-few-holders-and)

Most likely

FOR

## Cite it

```
Mysteries Department. (2026). The archive sold on 20 November 2025 included Sanborn's handwritten K4 plaintext and the original K4 coding… [Evidence EVD0D7HTA0E405P]. https://mysteriesdept.com/r/EVD0D7HTA0E405P
```

Key

**EVD** 0D7HTA0E405P

Kind

Evidence

Tier

Established

Version

1

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