Re: tank cars GATX 22909 and HMHX 6012 in 1949


CJ Riley
 

It looks like the brickwork joints on the left side were roughly and crudely repointed to repair water damage. If not properly cleaned, usually with Muriatic acid, a light coating from the mortar could remain. Something to consider modeling on purpose rather than the oft seen over coating from too much modelers mortar (paint or whatever).



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