Answers.Body: <p>I cannot think of comprehensive resource that would list this kind of details. The only thing on my mind is <a href="http://legocollectorsguide.weebly.com" rel="nofollow noreferrer">The Unofficial LEGO Sets/Parts Collectors Guide</a>, which can have some of the information you are looking for.</p>
  <p>Gary Istok aka &quot;LEGO Historian&quot; has been known for gathering information on lots of old and obscure LEGO stuff. He has occasionally shared some of this in form of <a href="https://www.eurobricks.com/forum/index.php?/profile/1550-lego-historian/&amp;do=content&amp;type=forums_topic&amp;change_section=1" rel="nofollow noreferrer">posts</a> on Eurobricks.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2023-01-02T13:21:48.937Z
Answers.Text: Thank You very much. I will look into this
Answers.UserDisplayName: Henderson Glover
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2023-01-02T07:31:10.403Z
Answers.LastActivityDate: 2023-01-02T07:31:10.403Z
Answers.UserDisplayName: Alex
Body: <p>Does anyone know of any undocumented vintage LEGO sets such as Promos or mail in order items? I know of some but it'd be interesting to find out if there were others.</p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2023-01-01T21:21:02.643Z
Comments.Text: Could you give an example of the sets you have in mind?
Comments.UserDisplayName: Alex
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2023-01-02T01:04:11.250Z
Comments.Text: The one I’m wondering about is 367 Airport from the 1970s
Comments.UserDisplayName: Henderson Glover
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2023-01-02T04:18:51.080Z
Comments.Text: I guess the real question is how would one have gotten a set like this as I don't think it was a regular retail set
Comments.UserDisplayName: Henderson Glover
Tags: <vintage>
Title: What were vintage LEGO promos like?
UserDisplayName: Henderson Glover
ThreadText: # What were vintage LEGO promos like?
  
  (Asked by: username_0 on 2023-01-01)
  
  Does anyone know of any undocumented vintage LEGO sets such as Promos or mail in order items? I know of some but it'd be interesting to find out if there were others.
  
  **Tags:** vintage
  
  > **Comments:**
  > **username_1**: Could you give an example of the sets you have in mind?  
  > **username_0**: The one I’m wondering about is 367 Airport from the 1970s  
  > **username_0**: I guess the real question is how would one have gotten a set like this as I don't think it was a regular retail set  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2023-01-02. Score: 0 | Accepted answer
  
  I cannot think of comprehensive resource that would list this kind of details. The only thing on my mind is [The Unofficial LEGO Sets/Parts Collectors Guide](http://legocollectorsguide.weebly.com), which can have some of the information you are looking for.
  
  Gary Istok aka "LEGO Historian" has been known for gathering information on lots of old and obscure LEGO stuff. He has occasionally shared some of this in form of [posts](https://www.eurobricks.com/forum/index.php?/profile/1550-lego-historian/&do=content&type=forums_topic&change_section=1) on Eurobricks.
  
  > **Comments:**
  > **username_0**: Thank You very much. I will look into this  
  
  ---
  
  