Unknown, yet lovely Pottery Vase

I found this lovely piece today. I have no idea of it's age or origin. It stands 10" high & has a lovely gloss finish to it. The mark on the bottom is faded in the middle so therefor tough for me to research. Besides from the # 5020, it's also has the # 1412 incised on it as well as what looks like the letter "K" under the glaze. I wanted to add a few more pottery pieces to my collection & this goes quite well with everything