I have a few collectible planters that have been pre-owned and used.  They are quite decorative and all are in usable condition.  This one is a white Hull Pottery planter and is marked on the bottom along with USA.  There are two other markings but they are hard to read; possibly one is a number.  This is a vintage planter and there is a crack along the rim and also a production flaw or scratch on the inside. (These are hard to see in the photos.)  All in all, these marrings do not detract from its usability, collectibility nor simple HULL beauty.

The measurements of this oval plante are: 7 inches long across the top, 4 1/2 inches wide across the top, 3 3/4 inches wide across the base, 6 1/2 inches long across the base,  2 3/4 inches tall, and approximately 2 inches deep.   Also, this planter stands on four stubby legs.