THIS AUCTION OFFERS WHAT I BELIEVE TO BE A VINTAGE ARTOGRAPH PROJECTOR LENS 240mm f:4.5. IT IS HEAVY, SHOWS LIGHT WEAR. GLASS IS INTACT - NO SCRATCHES OR DAMAGE THAT I CAN SEE. I KNOW NOTHING ABOUT PROJECTORS. FEEL FREE TO ASK ME QUESTIONS AND I WILL TRY MY BEST TO ANSWER THEM. IT STANDS APPROX. 6.5" TALL. THE SMALL END IS 3" ACROSS AND THE WIDE END IS 6". MATERIAL APPEARS TO BE METAL. THERE IS A TINY STAIGHT DIG NEXT TO THE SMALL SQUARE-...LIKE INDENTATION ON THE SMALL END. IT MAY BE IN THE MANUFACTURING OF THE ITEM - PLEASE SEE THE PHOTO. ACTUAL AGE OF ITEM UNKNOWN TO THIS SELLER. THIS LENS IS AN ESTATE FIND. AS WITH ALL MY AUCTIONS, YOU ARE BUYING IT IN "AS IS" AND "AS FOUND" CONDITION. THANKS FOR LOOKING AND.......BID NOW!!