Another was the TEMISKAMING & NORTHERN ONTARIO RAILWAY, which utilised an arch for TEMISKAMING, with the ampersand below that, then NORTHERN ONTARIO on one line, and in a mirror image of the first arch, RAILWAY. This road later became the Ontario Northland, to resolve the conflict of reporting marks with the Texas & New Orleans.
Others which I found in my C-D-S catalogue of lettering include the SPOKANE PORTLAND & SEATTLE and the RIO GRANDE SOUTHERN, the latter at least on their tenders, and, as Stix mentions, their cabooses, too.
The Great Northern Railway of Canada put the first two words in an arch, and the first three words in the French version, on the other side of the car (which translate as “Railroad”).
The Denver South Park & Pacific RR put the DSP&PRR in an arch, along with the word TIFFANY on the other side of the door, on their reefers and the catalogue also shows a similar DSP&P car with UNION PACIFIC in an arch on one side of the door, and an arched REFRIGERATOR on the other side.
The Denver & Rio Grande used all sorts of arches on ventilated boxcars and reefers, and it included the DR&G, along with the spelled-out name, the car type, and even some route slogans and the types of products carried in such cars.
The Jersey Central Lines put the JERSEY CENTRAL portion of the name in an arch in their Miss Liberty herald.
Canadian Pacific had the roadname on their cabooses, and double-sheathed boxcars, and ventilated boxcars in an arch in the early 1900s, as did Canadian Northern.
That’s about all I could find in that catalogue, and most were for older cars and/or narrow gauge roads.
Wayne