Refrigerator Containers.

I popped into the local Train-shop the other day to buy some Vallejo paint and had a look through the secondhand train items as I usually find something of interest for 20mm terrain. I found instead some Containers which had been removed from either Truck bodies or Train wagons in either O scale or 1/48th scale. (if there is any difference?) I've looked on Ebay and have Googled for these but cannot find anything that matches the refrigerator units on the front so am unsure who makes them.

I initially picked up two of them as they were $8.50 each but then thought that I'd regret not buying them all in six months time when I had forgotten how much they had cost.

My plan is to make some of them as truck trailers and the rest as dismounted units, used as permanent storage units for the Factory that I plan to make for my Post Apoc or Zombie gaming.

The doors are able to be opened but the interior looks like it would need some work to look decent. I'm thinking of having some Zombies or supplies spilling out. The labels look decent in the photos but they are only paper labels stuck on. I may remove them or just varnish and do a dark wash over them. No rush to decide at this stage so I might come up with another plan.