I got out of my chair and easily found my mother's pen. I need to take a photo of it one of these days.
From the tip of the cap to the bottom of the pen is 3 3/4 inches. The green swirls are quite pretty, but not goofy. The nib and a couple of thin bands are gold-ish (I can't tell).
widest over all is 3/8" (cap edge). Alas, there was originally a bitty wire so the student could put her pen on a ribbon (I sort of remembered and checked, yes there is a tiny hole.) I'm not trying to sell it, just connecting it with my mother, born in 1901.
I figure these were even back then sort of useless re the amount of ink - but what do I know..