Earlier model, 1887, of which I have one, serial number is located inside back. Mine has hinged back, and model number is stamped in the wood, on the left.
The serial number for an Estey organ is typically located on the back or underside of the instrument. For many models, it can also be found inside the organ, often on a label attached to the wood or frame. If you're having difficulty locating it, consult the owner's manual or documentation that may have come with the organ.
The serial number on a Clough & Warren pump organ is typically located on the back or underside of the instrument. You may also find it on the inside of the cabinet or near the keyboard area. If it’s not immediately visible, check for a small metal plate or sticker that may contain the serial number.
Year built of Newman Bothers pump organ - serial number 17273?
Lowrey LSL-0 serial number 53-2443
Mine was on the back interior wall of the organ.
What's the value of a Thomas organ model#727 serial # 1230130
Model 191 serial number f0281405
from the 1960's and on
5.00
S10 serial 416642
Very little information is available about the DW Karn company. An organ with the serial number 19934 can only be placed to have been manufactured between 1886 and 1890.
The Bridgeport Organ Company operated in Bridgeport, Connecticut (USA) from the late 1870ies to around 1905. There are very few records left, so deducing age from serial number is impossible. But you could open the casing and remove a reed - most reeds have the year of manufacture stamped onto them. Our Bridgeport organ is serial number 39018 and was made in 1888 (numbers were not necessarily used subsequently, though).