James, the slide is dated to 1954 by handwriting on the mount, and it is definitely Kodachrome. The color palette may have been slightly altered in the scanning and posting process, but it is likely Type A (or equivalent) Kodachrome from that time. With some of those other brands of faded slide film, I have found it possible to digitally restore a great deal of the color. Not to "Kodachrome good" but very acceptable. However, I have a bunch that are practically all orange! Haven't attempted to do anything with those yet.
The oddest thing I noticed about it is a bare tile floor in what appears to be the living room, but with three young boys, that might not be such a bad idea.
No other information on the slide mount suggests that it was taken outside of the US, but that is an interesting thought, and I'm glad you are enjoying it. Just out of curiosity, how are you able to view it best? Cross-eyed or parallel?