"Prototype" 4-6-0?

[p51]

A pal of mine recently scored a unfinished On30 ten-wheeler off eBay and it's cast in different color plastics than the production ones. For example, the coal pile casting it in silver-color plastic, not black. It's a mix of silver and black colored castings.
It came with an extra tender (damaged and without trucks or internals) so he sent that to me. I have every intention of keeping it as-is as I strongly suspect that this was a pre-production example that perhaps Lee Riley might have owned.
I've heard rumors that this might have been an example used in the hobby press to show the pre-production of the engines.
Has anyone ever seen a photo of one of these in the hobby press or anything else I could learn about it?

[Rogers k88]

It took a little hunting, but I found it:

https://connect.invaluable.com/stout/auction-catalog/MAY-5,-2018-WEST-MIDDLESEX,-PA-HO,-On30,-O-G-GAUGE-PLASTICVILLE-ARTWORK,-POSTWAR,-MODERN_YZKSFD4B1L/?keywords=on30

Unfortunately my budget didn't allow when  this auction was live, but it's a good reference for you.

Scroll down the page about halfway, there's a few tenders as you describe, how lucky you are if that's what you have :)

[p51]

I know the auction listings they got sold from, I was wondering if there was anything showing them being displayed as prototypes anywhere.
Obviously they made a bunch of these and I'm sure mine was just a test shot, but I'd like to find a photo released to the press or public showing one.

[J. S. Bach]

In looking at the auction listings, I saw this; is it for real?

https://connect.invaluable.com/stout/auction-lot/Bachmann-On30-Prototype-Alco-FA2-AB-Diesel-Units_0434E7DA3E/#

[ebtnut]

Well, whoever posted the description of those FA's doesn't know anything about trains.  First, they are HO, not On30.  Second, they aren't Bachmann since Bachmann has never, to my knowledge, made any FA locos.  I'm going guess they might be Model Power undecs. 

[Len]

Well, it's not an out of production Walthers Trainline FA-1. The underbody is completely different:


Len