Bottom of bowl base is approx 16.5 x 8.75. 2.75 INCH spud hole on back for water entry spud connection (standard size) See photo."EXIT" hole on bottom has outer diameter of 3.5. Bowl rim is "round" shape not elongated. No hardware, connections, gaskets are provided. A friend sent me the link to your 1939 mystery bowl.
The bowl is made by Gerber, and the model is Jefferson. Gerber used model names like Paul Revere, Mount Vernon, Arlington, etc. Apparently the production of the Jefferson lasted several decades. I have a bowl like this one dated 1952.This item will be FULLY insured for the full amount at no cost to you. Thank you for visiting Toiletsandstuff! THE ITEM YOU ARE LOOKING AT IS FROM A WALL TANK TOILET, MEANING A TOILET IN WHICH THE TANK IS BOLTED TO THE WALL ABOVE THE BOWL AND CONNECTED TO THE BOWL WITH A PIPE. I HAVE MANY WALL TANKS, LIDS AND BOWLS AND CAN HELP YOU FIND YOUR EXACT MATCH, OR IF NOT A MATCH I CAN TELL YOU WHICH TANKS I HAVE THAT STILL HAVE MATCHING LIDS. ALSO, I HAVE MANY BOWLS THAT WILL CONNECT TO ANY WALL TANK. WALL TANK TOILETS GIVE A BATHROOM AN ANTIQUE LOOK BECAUSE THEY ARE ANTIQUES. RETAINING THAT THEME ADDS VALUE TO YOUR BATHROOM AND YOUR HOUSE. The item "GERBER JEFFERSON 1939 46 ROUND toilet bowl for wall tank rear inlet water WHITE" is in sale since Saturday, January 6, 2018. This item is in the category "Home & Garden\Bath\Toilets & Bidets\Toilet Parts & Attachments".
The seller is "birdcycle" and is located in Kansas City, Missouri. This item can be shipped to United States.