Thanks for taking the time to take a pic, Glen!
Unfortunately mine is on "display" at work, so no chance to take a pic before next week; but the base looks like yours, with just several flaws similar to the one close to the camera in yours, just a lot bigger (even makes the vase wobble a little); but as there are no sharp edges, and not the slightest damage visible above the base, I assumed that it was probably rather a production issue than a chip.
BTW, I will need your help again, as I aquired a nice carnival lidded jar today, but just cannot find the pattern anywhere.
Will take pics as soon as I have the time!
edit: just had a stroll through your wonderful website, and found it: Hortensja Poland! "Sultan" pattern.