Answers.Body: <p>Leggodt.nl lists such a brick as part of their collection and also has photos of them. <a href="http://www.leggodt.nl/items/lego/part.php?group=4&amp;sq=25" rel="nofollow noreferrer">Here</a> is the entry, and <a href="http://www.leggodt.nl/items/lego/date-parts.php?language=nl" rel="nofollow noreferrer">on this site</a> you can find a good picture showing the brick and the obscured <em>Pat. pend.:</em></p>
  
  <p><img src="https://i.sstatic.net/Xq9P2.jpg" alt="Picture of plain brick with “patent pending” obscured"></p>
  
  <p>(The entire site is a good source for what does exist.)</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-06-11T16:20:30.440Z
Answers.LastActivityDate: 2016-07-29T13:45:33.160Z
Answers.LastEditDate: 2016-07-29T13:45:33.160Z
Answers.UserDisplayName: Wrzlprmft
Body: <p>I've been working on a little history project to make a shadowbox/display-type thing of all of the major evolutions of the 2x4 brick over the years.  (I know this can get really in-depth, and I'm trying to hit major changes only, to preserve my sanity).  </p>
  
  <p>My question is this:
  is there such a thing as a 2x4 brick (it would be ABS) with the "Pat Pend" obscured (covered by a blob, denoting an updated mold), that has <strong>tubes only</strong>?</p>
  
  <p>In other words--<strong>no braces, horizontal crossbars, ridges of any kind</strong> (no slotted tubes either), just like a 60's brick, but made <strong>late</strong> enough to have the "Pat Pending" obscured, but <strong>early</strong> enough to not have any added reinforcements.</p>
  
  <p>Also, by all of this I mean a brick that would have been in normal sets, and not a sample or test brick.</p>
  
  <p>It's getting frustrating, and I wonder if I have invented this category!</p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2016-05-17T18:53:24.210Z
Comments.Text: It sounds like you're describing a brick you have; a picture would be nice in that case.
Comments.UserDisplayName: Lepidolite Mica
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2016-05-17T23:23:33.900Z
Comments.Text: No, I'm just trying to find out if there's such a thing. One site lists something that sounds like it, but in the photo you can't see inside the brick!  (Leggodt.nl Unless I am reading it wrong.)
Comments.UserDisplayName: sampoerna quatrain
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2016-05-18T15:28:34.367Z
Comments.Text: The entry I am referring to is #25 on this list of 2x4 variations.  In the second photo, you can see the "Pat Pend" is obscured, but you can't exactly see if there's a cross-bar running through the tubes! (He says "without cross support" which I am taking to mean the sidewalls in the modern 2x4 brick:                                                                                        http://www.leggodt.nl/items/lego/part.php?group=4&sq=25&language=en
Comments.UserDisplayName: sampoerna quatrain
Tags: <piece-information><history>
Title: Does this 2x4 brick exist?
UserDisplayName: sampoerna quatrain
ThreadText: # Does this 2x4 brick exist?
  
  (Asked by: username_0 on 2016-05-17)
  
  I've been working on a little history project to make a shadowbox/display-type thing of all of the major evolutions of the 2x4 brick over the years. (I know this can get really in-depth, and I'm trying to hit major changes only, to preserve my sanity).
  
  My question is this:
  is there such a thing as a 2x4 brick (it would be ABS) with the "Pat Pend" obscured (covered by a blob, denoting an updated mold), that has **tubes only**?
  
  In other words--**no braces, horizontal crossbars, ridges of any kind** (no slotted tubes either), just like a 60's brick, but made **late** enough to have the "Pat Pending" obscured, but **early** enough to not have any added reinforcements.
  
  Also, by all of this I mean a brick that would have been in normal sets, and not a sample or test brick.
  
  It's getting frustrating, and I wonder if I have invented this category!
  
  **Tags:** piece-information, history
  > **Comments:**
  > **username_1**: It sounds like you're describing a brick you have; a picture would be nice in that case.  
  > **username_0**: No, I'm just trying to find out if there's such a thing. One site lists something that sounds like it, but in the photo you can't see inside the brick!  (Leggodt.nl Unless I am reading it wrong.)  
  > **username_0**: The entry I am referring to is #25 on this list of 2x4 variations.  In the second photo, you can see the "Pat Pend" is obscured, but you can't exactly see if there's a cross-bar running through the tubes! (He says "without cross support" which I am taking to mean the sidewalls in the modern 2x4 brick:                                                                                        http://www.leggodt.nl/items/lego/part.php?group=4&sq=25&language=en  
  
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  ## 1 answers
  
  ### Answer by username_2 on 2016-06-11. Score: 5
  
  Leggodt.nl lists such a brick as part of their collection and also has photos of them. [Here](http://www.leggodt.nl/items/lego/part.php?group=4&sq=25) is the entry, and [on this site](http://www.leggodt.nl/items/lego/date-parts.php?language=nl) you can find a good picture showing the brick and the obscured *Pat. pend.:*
  
  ![Picture of plain brick with “patent pending” obscured](https://i.sstatic.net/Xq9P2.jpg)
  
  (The entire site is a good source for what does exist.)
  
  
  ---
  
  