Spinets are not desirable for the most part. They will be marginal entry level type pianos. Now, for the good part: If your piano tunes to A=440hz (standard pitch) and the key and hammer actions play precisely, without moisture causing slow or sluggish operation, and if the case is in top condition and it has been tuned on a regular basis, has a matching bench and is ready to go, them it could be worth about $800.Any departure from 100% function will lower the value.
Lester Betsy Ross Spinet Piano Serial Numbers Lookup
Most spinets from the 50's sell for about $500 + or.Baldwin will be the better spinet.If someone liked it because of the style and doesn't care about absolute condition.you can never tell.you may be able to sell it for $1000.but would be hard.Best I can say about it.anthonysee the pdf for spinet/console value in the date range.