Answers.Body: <p>According to Brickset this <a href="https://brickset.com/sets/21001-1/John-Hancock-Center" rel="nofollow noreferrer">set</a>'s shelf life was:</p>
  <pre><code>LAUNCH/EXIT01 Jul 2008 - 31 Dec 2011
  </code></pre>
  <p>I have 42000 set from 2013 (and some others too) which still use stickers with arrows like one of your pictures. So it wasn't until few years later currently used stickers (with production week marked) have been introduced.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2021-11-17T08:27:08.203Z
Answers.Text: Hi Alex, many thanks for the clarification. it's a great relief for me!
Answers.UserDisplayName: Henry Liu
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2021-11-16T07:02:23.867Z
Answers.LastActivityDate: 2021-11-16T07:02:23.867Z
Answers.UserDisplayName: Alex
Body: <p>I have bought a lego architecture 21001 &quot;John hancock&quot; from a website.But as the title, there is no 4-digit code on the sticker. Could you guys help check if the stick is not the original one?<a href="https://i.sstatic.net/l4nCr.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/l4nCr.jpg" alt="enter image description here" /></a><br />
  <a href="https://i.sstatic.net/FJbMD.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/FJbMD.png" alt="enter image description here" /></a></p>
  
Tags: <building>
Title: Box seals: Two arrows instead of 4-digit manufacturing code, is this a fake?
UserDisplayName: Henry Liu
ThreadText: # Box seals: Two arrows instead of 4-digit manufacturing code, is this a fake?
  
  (Asked by: username_0 on 2021-11-16)
  
  I have bought a lego architecture 21001 "John hancock" from a website.But as the title, there is no 4-digit code on the sticker. Could you guys help check if the stick is not the original one?[![enter image description here](https://i.sstatic.net/l4nCr.jpg)](https://i.sstatic.net/l4nCr.jpg)  
  [![enter image description here](https://i.sstatic.net/FJbMD.png)](https://i.sstatic.net/FJbMD.png)
  
  **Tags:** building
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2021-11-16. Score: 4
  
  According to Brickset this set's shelf life was:
  LAUNCH/EXIT01 Jul 2008 - 31 Dec 2011
  
  I have 42000 set from 2013 (and some others too) which still use stickers with arrows like one of your pictures. So it wasn't until few years later currently used stickers (with production week marked) have been introduced.
  
  > **Comments:**
  > **username_0**: Hi Alex, many thanks for the clarification. it's a great relief for me!  
  
  ---
  
  