Your Krum cake pan is in the Griswold section on p159 in the red book.
Andresen may have contracted with different foundries for some items, but there are about a dozen other Griswold waffle/wafer/pancake makers and bases with four digit pattern numbers that start with 24__. It is unlikely that Andresen contracted a different foundry who then appropriated Griswold’s pattern numbering conventions for no reason.
So if it was in my kitchen, I’d call it Griswold-made.
---------- Post added at 08:56 PM ---------- Previous post was at 08:49 PM ----------
PS, I learned the hard way that krum kake irons require a shockingly small amount of batter to make wafers on an electric stove without making a big mess and starting a small fire.