This vintage adding machine from Felt & Tarrant is a true collector's item. With its mechanical calculator and unique design, it's perfect for display in any collection. This is a model 3D11 with a Serial Number: 16668 and was made in Chicago, Illinois, USA. Machine works well and has rubber feet, with a bracket that provides a slight tilt angle for ease of use (bracket is removable). Please see all the pictures for a more detailed look at this wonderful early calculator. This model has a multiplier and divider button on the left side. All buttons are in very good working order. Has many additional features like just below the numbers are buttons at the bottom of each row. Also, below each number display area there is a small metal tab that slides left or right - you can slide any or all individually. The reset lever works well and resets everything each time you pull in back and it returns as it should (spring loaded). 

The maker, Felt & Tarrant, are renowned for producing high-quality machines. This particular model is a great representation of their craftsmanship. Whether you're a collector or just interested in the history of adding machines, this vintage Felt & Tarrant comptometer is a must-have for any enthusiast. 

A well taken care of machine that is in great working condition.