Answers.Body: <p>These look like &quot;Blue-Box&quot; , a construction toy from Singapore</p>
  <p>From <a href="http://www.inverso.pt/legos/clones/texts/bluebox.htm" rel="noreferrer">inverso.pt</a></p>
  <p><a href="https://i.sstatic.net/k4PXz.jpg" rel="noreferrer"><img src="https://i.sstatic.net/k4PXz.jpg" alt="enter image description here" /></a></p>
  <ul>
  <li>Blue Box basic elements with a 2X4 LEGO brick on the right</li>
  </ul>
  <p><a href="https://i.sstatic.net/mwn9H.jpg" rel="noreferrer"><img src="https://i.sstatic.net/mwn9H.jpg" alt="enter image description here" /></a></p>
  <ul>
  <li>The inside of a &quot;Blue-Box&quot; construction set</li>
  </ul>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2021-01-17T22:29:13.027Z
Answers.Text: Nice find! I think it might be worth adding second picture from the article you are referring to since it shows two other elements provided by OP.
Answers.UserDisplayName: Alex
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2021-01-17T22:23:00.577Z
Answers.LastActivityDate: 2021-01-17T22:38:47.080Z
Answers.LastEditDate: 2021-01-17T22:38:47.080Z
Answers.UserDisplayName: Syberion
Answers.Body: <p>I don't think so; I've seen a lot of old Lego, and I'm fairly sure I've never seen these before.</p>
  <p>BrickLink has a <a href="https://www.bricklink.com/catalogList.asp?v=1&amp;pg=1&amp;catString=113&amp;sortBy=Y&amp;sortAsc=A&amp;catType=P" rel="nofollow noreferrer">window category</a>, and none of the pieces in there match.</p>
  <p>Sorry.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2021-01-16T02:52:55.680Z
Answers.LastActivityDate: 2021-01-16T02:52:55.680Z
Answers.UserDisplayName: RSchulz
Body: <p>I have had these windows in my LEGO collection since the 80's and my mum bought them second hand. They look and feel like Lego but don't have the word LEGO stamped inside the hollow circles on top.</p>
  <p><a href="https://i.sstatic.net/Sk1v9.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/Sk1v9.jpg" alt="enter image description here" /></a></p>
  
Tags: <part-identification><clone-brands>
Title: Are these LEGO windows?
UserDisplayName: WendyLego
ThreadText: # Are these LEGO windows?
  
  (Asked by: username_0 on 2021-01-16)
  
  I have had these windows in my LEGO collection since the 80's and my mum bought them second hand. They look and feel like Lego but don't have the word LEGO stamped inside the hollow circles on top.
  
  [![enter image description here](https://i.sstatic.net/Sk1v9.jpg)](https://i.sstatic.net/Sk1v9.jpg)
  
  **Tags:** part-identification, clone-brands
  
  ---
  
  ## 2 answers
  
  ### Answer by username_1 on 2021-01-17. Score: 6
  
  These look like "Blue-Box" , a construction toy from Singapore
  
  From [inverso.pt](http://www.inverso.pt/legos/clones/texts/bluebox.htm)
  
  [![enter image description here](https://i.sstatic.net/k4PXz.jpg)](https://i.sstatic.net/k4PXz.jpg)
  
  * Blue Box basic elements with a 2X4 LEGO brick on the right
  
  [![enter image description here](https://i.sstatic.net/mwn9H.jpg)](https://i.sstatic.net/mwn9H.jpg)
  
  * The inside of a "Blue-Box" construction set
  
  > **Comments:**
  > **username_2**: Nice find! I think it might be worth adding second picture from the article you are referring to since it shows two other elements provided by OP.  
  
  ---
  
  ### Answer by username_3 on 2021-01-16. Score: 0
  
  I don't think so; I've seen a lot of old Lego, and I'm fairly sure I've never seen these before.
  
  BrickLink has a [window category](https://www.bricklink.com/catalogList.asp?v=1&pg=1&catString=113&sortBy=Y&sortAsc=A&catType=P), and none of the pieces in there match.
  
  Sorry.
  
  
  ---
  
  