In music class in the Pennsylvania school I attended in the mid-1950s we used two hard-bound songbooks of a series.
One was silver and the other was gold. I'd say they were about 7 inches by 9 inches and maybe 3/4 inch thick.
One of them contained a song with the following words (as best I recall them):

"All day across the blue the caravans go by,
I see them come, I see them go, their clouds are in the sky,
Sometimes a camel train goes bound for far Cathay,
Sometimes a fleet of winged ships sails on for some blue bay,
Oh I have seen Crusaders ride in suits of silver spun,
And watched their banners floating high, their lances catch the sun,
One day twas just at sunset I saw where heaven waits,
For I saw seven angels pass through tall golden gate."

Can anyone help me identify these songbooks and find the correct words and music for this song?