We definitely take Platinum age when we can get it, which obviously isn't often.
If the collection was published in the US in 1917 it's public domain. According to Overstreet the 193 is a reprint of the 1917 book from 1929; I think that should be fine (particularly if there is no date other than 1917 on it) but waiting for verification from one of the other experts wouldn't hurt. (1922 is the cut off for "if it was published in the US it's PD")
Which reminds me, one of these days I need to figure out what to do with my copy of Mr. and Mrs. from 1922; the page size is just slightly too large for my scanner.