Did you notice that sometime between 2007 and 2015, they flipped the GE logo around. On my 2007 150w M250R2 FCO it's "upside down." Also, I noticed your NEMA tag is like mine, with the older font and not the "new" font.
Yeah not sure when they flipped the logo. It had always been opposite the NEMA tag since the original M-400 rolled out in 1959. Nope this NEMA tag is still the new font (Ariel) but the size of the numbers is still normal. The old font was Helvetica. Both fonts are really similar with "25" but if there was a "1" in the wattage you'd really notice it.