This distinctive silhouette features a classic "mushroom" or flared collar rim designed to suspend a flower bulb perfectly above the water line, allowing the root system to grow down into the tapered neck of the vase. The glaze features an elegant, subtle crackle and pooling effect that beautifully emphasizes the vintage form. Markings: The underside of the base features a small, authentic geometric square block stamp cleanly impressed into the clay. The bottom line of the square mark clearly reads "MADE IN USA", identifying its mid-century American origin. The base ring also displays a traditional pinprick kiln stilt mark from the original firing process