<p><a href="https://i.sstatic.net/eDlFC.jpg" rel="noreferrer"><img src="https://i.sstatic.net/eDlFC.jpg" alt="enter image description here"></a>
<a href="https://i.sstatic.net/sLdwJ.png" rel="noreferrer"><img src="https://i.sstatic.net/sLdwJ.png" alt="enter image description here"></a>
<a href="https://i.sstatic.net/cGqyC.png" rel="noreferrer"><img src="https://i.sstatic.net/cGqyC.png" alt="enter image description here"></a></p>

<p>Hey, there <em>Happy Dog</em>!  These train pieces?</p>

<ul>
<li>Part #<em><a href="https://www.bricklink.com/catalogItemInv.asp?S=12-3" rel="noreferrer">BB37</a></em> - Train Brick 2 x 4 x 1 1/3 Sliding Block with Wheels
Holder.</li>
<li>Part #<em><a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=wheel2a&amp;idColor=11#T=S&amp;C=11&amp;O=%7B%22color%22:11,%22iconly%22:0%7D" rel="noreferrer">Wheel2A</a></em> - Wheel Spoked for Motor.</li>
</ul>

<p>Together they appear in <em><a href="https://www.bricklink.com/catalogItemIn.asp?P=bb37&amp;in=S" rel="noreferrer">these</a></em> <em>LEGO</em> sets.</p>

<p>See ya!</p>

CC BY-SA 4.0
2018-12-02T09:07:53.597Z
Thank you so much Rin Rio-Oki. That are the blocks!! You identified them and did that very fast. This forum is amazing. Lego made so many different parts, without a community of adult Lego lovers it would take so much time to identify every little bit of it. And I'm a beginner, but willing to learn. Thanks again. Cordially,
Happy Dog.
Happy Dog
CC BY-SA 4.0
2018-12-01T23:09:42.690Z
2018-12-01T23:23:23.790Z
2018-12-01T23:23:23.790Z
Rin Rio-Oki
<p>I found a bunch of Pat Pend <em>LEGO</em> in a thrift shop. Among all the goodies there are two black smooth 2x4 bricks with train wheels attached to them. </p>

<p>Their characteristics are as followed:</p>

<ul>
<li>They are studless.</li>
<li>Have a closed bottom.</li>
<li>On one of the long sides there is a half moon like cut-out with a
sort of flat hook thing.</li>
<li>On the short sides there are detachable train wheels with ten spokes.</li>
<li>The wheel axles are made of yellow brass.</li>
<li>The logo on top is the old <em>LEGO</em> logo with the letter "<em>O</em>" being open.</li>
<li>The logo is quite large.</li>
</ul>

<p>Can anyone help me identify these parts?</p>

<part-identification><trains><wheel><discontinued>
Can You Identify These Black Studless 2x4 Brick With Train Wheels?
Erik van der Vaert
# Can You Identify These Black Studless 2x4 Brick With Train Wheels?

(Asked by: username_0 on 2018-12-01)

I found a bunch of Pat Pend *LEGO* in a thrift shop. Among all the goodies there are two black smooth 2x4 bricks with train wheels attached to them.

Their characteristics are as followed:

* They are studless.
* Have a closed bottom.
* On one of the long sides there is a half moon like cut-out with a
  sort of flat hook thing.
* On the short sides there are detachable train wheels with ten spokes.
* The wheel axles are made of yellow brass.
* The logo on top is the old *LEGO* logo with the letter "*O*" being open.
* The logo is quite large.

Can anyone help me identify these parts?

**Tags:** part-identification, trains, wheel, discontinued


---

## 1 answers

### Answer by username_1 on 2018-12-01. Score: 5

[![enter image description here](https://i.sstatic.net/eDlFC.jpg)](https://i.sstatic.net/eDlFC.jpg)
[![enter image description here](https://i.sstatic.net/sLdwJ.png)](https://i.sstatic.net/sLdwJ.png)
[![enter image description here](https://i.sstatic.net/cGqyC.png)](https://i.sstatic.net/cGqyC.png)

Hey, there *username_2*! These train pieces?

* Part #*[BB37](https://www.bricklink.com/catalogItemInv.asp?S=12-3)* - Train Brick 2 x 4 x 1 1/3 Sliding Block with Wheels
  Holder.
* Part #*[Wheel2A](https://www.bricklink.com/v2/catalog/catalogitem.page?P=wheel2a&idColor=11#T=S&C=11&O=%7B%22color%22:11,%22iconly%22:0%7D)* - Wheel Spoked for Motor.

Together they appear in *[these](https://www.bricklink.com/catalogItemIn.asp?P=bb37&in=S)* *LEGO* sets.

See ya!

> **Comments:**
> **username_2**: Thank you so much username_1. That are the blocks!! You identified them and did that very fast. This forum is amazing. Lego made so many different parts, without a community of adult Lego lovers it would take so much time to identify every little bit of it. And I'm a beginner, but willing to learn. Thanks again. Cordially, username_2.  

---

