Answers.Body: <p>Those would be <a href="http://www.bricklink.com/catalogList.asp?q=waffle%20bottom" rel="nofollow noreferrer">Waffle Bottoms</a>, which seem to have been mostly phased out by 1969, except for the 4x8 plate that went until 1971. Having not read any deep history on old LEGO designs, I'm going with that was just what they went with to start, then realized that the tubes were much better.</p>
  
  <p><a href="https://i.sstatic.net/YYGCS.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/YYGCS.jpg" alt="enter image description here"></a></p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2014-03-02T08:32:38.147Z
Answers.LastActivityDate: 2019-08-25T12:55:11.663Z
Answers.LastEditDate: 2019-08-25T12:55:11.663Z
Answers.UserDisplayName: gev
Body: <p>I have some white plates with square holes on the underside. I'd almost think they were some imitation brand if they didn't have LEGO stamped on the studs. Can anyone tell me the history of when square hole plates were produced and for what purpose? Is this just a really old design? Why were they changed?</p>
  
Tags: <part-identification><vintage>
Title: LEGO plate with square holes?
UserDisplayName: Jessica Brown
ThreadText: # LEGO plate with square holes?
  
  (Asked by: username_0 on 2014-03-02)
  
  I have some white plates with square holes on the underside. I'd almost think they were some imitation brand if they didn't have LEGO stamped on the studs. Can anyone tell me the history of when square hole plates were produced and for what purpose? Is this just a really old design? Why were they changed?
  
  **Tags:** part-identification, vintage
  
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  ## 1 answers
  
  ### Answer by username_1 on 2014-03-02. Score: 11 | Accepted answer
  
  Those would be [Waffle Bottoms](http://www.bricklink.com/catalogList.asp?q=waffle%20bottom), which seem to have been mostly phased out by 1969, except for the 4x8 plate that went until 1971. Having not read any deep history on old LEGO designs, I'm going with that was just what they went with to start, then realized that the tubes were much better.
  
  [![enter image description here](https://i.sstatic.net/YYGCS.jpg)](https://i.sstatic.net/YYGCS.jpg)
  
  
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