Well, your daughter's pen is a dip pen, which people used before fountain pens became practical, and continued to use as writers and "training pens" into the 1950s. Today they are still in use by caligraphers and graphic artists.
Anecdotal rant: During my first 4 years of school (1948 - 1952) we used pens like it during Cursive Writing Class, to practice making letters and numbers. Our desks had a hole in the upper right corner into which a glass ink-filled bottle was placed. We'd then be given a pad of the most awful paper one could attempt writing on, and made to dip the pen and practice loops, curves, capital and small letters, etc. It was like trying to write on toilet paper (for me, anyway). The paper acted like a blotter if the pen was held in one spot more than a half-second. If the point was less than perfectly smooth, or the writer's hand was a bit heavy, the paper would catch and tear. Pure torture for me, having already been taught cursive writing by my older cousin at age 5.
End of rant.
The point on your daughter's pen is, of course an Esterbrook "bronze-finish medium flexible stub" (page 4 of the catalog in the back of the book). The holder, I'd guess, is one of the more ornate "deco"-style holders. And since the tail looks to be plastic, it could have been made any time from the 1920s to late 1940s. The design on the brass-colored sleeve suggests to me it's earlier rather than later. The front of the sleeve is made so that most any dip pen point can be inserted, making for easy point replacement.
Hope this helps ....
Edited by Hobiwan, 24 November 2017 - 09:39.