Recent consecutive catalogs show Rocky Mountaineer (Canadian..l had to look it up), and California Zephyr passenger cars including RPO's..did/does either real train run RPO's, any, and so-lettered? Also, the net offers a "honey bobber"....what the heck is that? Auction just shows a box of parts. There were "honey barges" hauling human manure for fertilizer in the past on Chinese rivers, but doubt any relation.
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