THIS BOWL LINED UP THE PATTERN STENCIL TO MAKE SURE IT WAS EVEN ON THE PRODUCTION BOWLS. THIS IS TRULY A ONE OF A KIND PIECE. IF YOU HAVE ANY QUESTIONS, PLEASE CONTACT ME. THANKS FOR CHECKING OUT MY AUCTIONS! The item "PYREX Rare HTF 443 PROTOTYPE TOOL FOR EMPLOYEE CINDERELLA BOWL BLUE & GREEN DOT" is in sale since Monday, February 4, 2019.This item is in the category "Pottery & Glass\Glass\Glassware\Pyrex". The seller is "pyrexglass1234" and is located in Monessen, Pennsylvania. This item can be shipped to United States.