If you have one of these gathering dust, I’m interested.
The LGB Cabooses in that color combination are much harder to find then the blue/white ones in the WP&Y. I do see them on eBay from time to time and there price is usually high, so good luck on finding one. I believe that the yellow/green caboose #42792 was a special run and not a production run offer by LGB, but not sure, plus there is a red one also produced by LGB.
I have been finding that out while I’m searching.
I have the red one in my collection and the solid blue one. I have a green/yellow loco and wanted the
matching caboose.
It’s what makes the hobby fun…searching and looking. 
I’m still looking for one.