A reference information, usually blue in shade, serves to estimate the worth of keyboard devices. A novel identification code assigned to every instrument throughout its manufacture is an important aspect on this valuation course of. This code, sometimes stamped onto the instrument’s body or soundboard, permits for exact identification of the make, mannequin, and 12 months of manufacturing, forming the premise for figuring out its present market worth. For instance, a code positioned inside a grand instrument can pinpoint it as a particular mannequin from a widely known producer within the early twentieth century.
The correct identification and evaluation of devices by way of the usage of such a information and their related identifiers is necessary for a number of causes. It assists patrons and sellers in establishing truthful costs throughout transactions. It offers a historic report that can be utilized for insurance coverage functions, value determinations, and property planning. Moreover, the information provides context for understanding the instrument’s options, development, and potential restoration wants. The evolution of those worth guides displays adjustments within the instrument market and the elevated sophistication of valuation methodologies.