International Business Machines Master Clock 1939. Model A 13 7. INVAR Double Cylinder Pendulum. Would make a great gift or keep it for yourself. This clock was still actually hooked up to wires in the house for whatever wattage the clock runs on, certainly not house current. This clock was made by International Business Machines (ITR) of Endicott, NY. This is their model “A 13 7″. The clock was made n 1939, per the serial number on the plate on the inside of the case. The clock has a beautiful “INVAR” pendulum on it, that was an innovation for it’s time, making the clock accurate within 15 seconds every month. Invar is a nickel-iron alloy that started being used in place of mercury in clock pendulums in the latter 1800s. Invar was considered much more accurate, and also less hazardous. We also have the instruction manual for the clock that comes in a small red three ring binder. The binder has the pre-printed manual, plus lots of pencil sketches of clock relevant items as well. Says No 226 and April 1938 in the manual at the top right of each page. Has “50” printed in the instruction book and there was that same number in chalk on the bottom of the case that we accidentally mostly wiped off when getting the dust off this beast. The wood case still has a lot of its’ original elegance. Some sun damage along the top front and To one side of the case. Other wear to finish in place from age. The locking latch for the doors are still on the the side, and the key to operate them comes with the clock. Hinges for the door are in working order. Door is securely attached to the rest of the case. Nice intact front glass piece on this case. All the glass is intact with no blistering or cracks. The clock face is made of tin and has “International” noted on it. Nice brass movement on this clock, see pic. This is not a mechanical key wound spring movement. The movement is wound by electricity, and then the beautiful pendulum keeps the movement running. Great pendulum rod and bob on this clock that look appropriate to the clock. Has a long silver colored metal rod. Then the twin cylinder silver colored metal bob. The movement ticks when the pendulum is started. The metal beat scale for determine case is level on wall is in place. The clock case stands 61.25″ tall, by 20″ across, by 8-3/8 wide. The clock face is 11.25 across. Let us know if you have any questions or need additional pictures. Other items that can be seen in the pictures are not included with this Clock, only the IBM Wall Clock described here. There is no representation that the clock is in original condition, or will continue to be in not working order. If you have not had experience with old mechanical clocks before, I would suggest you steer clear. One really needs to have the patience, and skill to work with these great works of art. They are not our modern plug in and go, or change the battery clocks. Will also offer to deliver the clock to within 200 miles of Georgetown, DE one way. Make sure that this clock meets your needs and requirements before deciding to acquire it. So again, ask all questions you have, come see in person or send a friend to see the clock on your behalf, prior to deciding to acquire it. Don’t be shy, we are always open to reasonable suggestions! Keep in mind a blanket packing company can take up to 6 weeks to deliver the item. Please check out our other Timeless Tokens store listings as we are regularly adding new items. We specialize in vintage artwork, books, collectibles, furniture, musical instruments, clocks, and decorative boxes. Thanks for your business. Select countries (disclosed in individual item description). All items are as described, with any item history, known defects or imperfections disclosed in each listing. Timeless Tokens , our online store offering antiques, collectibles, and conventional merchandise for every need and occasion. Timeless Tokens represents the fulfillment of a long-held dream to create a business that allows us pursue our passion for finding unique collectibles and everyday items that can be shared with and appreciated by all. Our listings are updated regularly and centered on items that we know best – vintage artwork, clocks, collectibles, toys/model trains, musical instruments, and decorative boxes. We appreciate your taking the time to visit our store, and hope you will provide us feedback that will enable us to make your shopping experience the best it can be. The item “International Business Machines Master Clock Beautiful INVAR Pendulum Wood Case” is in sale since Tuesday, June 2, 2020. This item is in the category “Collectibles\Decorative Collectibles\Clocks\Wall Clocks”. The seller is “hallboys321″ and is located in Georgetown, Delaware. This item can’t be shipped, the buyer must pick up the item.

• INVAR Double Cylinder Pendulum: Nickel Iron Alloy Double Cylinder Pendulum Bob
• Time Period Manufactured: 1900-1919
• Modified Item: No
• Clock Type: Master Clock
• Vintage: No
• Era: Early 20th Century (1911-1940)
• Power Source: Electrical
• Country/Region of Manufacture: United States
• Material: Wood, Glass, Metal
• International Time Recorder: Master Clock Model A 13 7 Runs?
• Model: Unknown
• International Business Machines Clock: IBM ITR Master Wall Clock 61 in Height
• Display Type: Analog
• Brand: International Business Machines ITR
• Style: Antique
• Antique: Yes
• Color: Brown White
• Chime Sequence: No Chime
• Movement: Electrical
• Type: Wall Clock