VINTAGE HERSEY MECHANICAL WATER LEVEL INDICATOR! LOOKS UNUSED! EASY TO READ!!!! A terrific collectible - HERSEY MECHANICAL WATER LEVEL INDICATOR! OUTSIDE OF HEAD 5" DIAMETER BALL DIAMETER 2 1/2" IT LOOKS UNUSED, IT STILL HAS THE TAG PASTED ON IT, SEE PICTURES THE TOTAL VERTICAL TRAVEL OF THE FLOAT IS ABOUT 20'' BIG EASY TO READ DIAL I THINK THE METALLIC PARTS ARE BRONZE NO GASKETS OR INSTRUCTIONS THE SEALS ARE UNTESTED THE ROD HAS A SLIGHT BENDVERY WELL MADE, INDUSTRIAL QUALITY AGE UNKNOWN A HARD TO FIND ITEM!!!GREAT FOR DISPLAY!!! Shipping US Mail PAYPAL Welcome!!!