What is value of wurlitzer piano model 2020 serial number 718334?

According to the Wurlitzer Company, there does not seem to be a 2020 model piano. There is, however, model 290 from the 1950s and a 220 made somewhere from 1925 into the late 1950s. To provide any sort of valuation will require further detail or model/type clarification or more professional appraisal.