My grandfather sent one or more of those back home before he
shipped out in 1944. I've got a copy of the one he sent to his
parents and a sister.
It's hard to tell the month by what they announce as it's clipped,
It's something 24, 1944... May, June, or July maybe according to
the schedule of the ship being launched and commissioned maybe.
They left for Pearl Harbor, and other parts in Oct 1944.
http://en.wikipedia.org/wiki/USS_Canotia_(AN-47)
Here is a digi copy of the record.. BTW, my aunt has the original,
and she said it was on cardboard, or something like that.
Kind of like the records they would give away on cereal boxes..
They would coat the box with harder vinyl and put the grooves
into the vinyl. I think it was 78 rpm.. I don't know where it was
recorded, IE: USO, Red Cross, or whatever, but GEM razors seemed
to be a sponsor for this one.
Nothing exciting, but you can hear what one sounded like..
http://home.comcast.net/~disk100/marvin.mp3
Myself, I would be kind of surprised if the records the OP found
were not 78 rpm. 33 rpm existed back then, but pretty rare.
Almost everyone in the 40's ran 78's for the most part.
I'm not sure if many home phono's had 33 rpm back then..
That didn't really become that popular until the late 50's,
early 60's or so when the LP albums got to be big sellers.
I've got a 1948 RCA console here in the room, but I've got
stuff piled on top of it, so can't look to see if it's got 33 rpm
at the moment. :/