Beethoven Scores

[franzliszt2]

Hello

I have just came into possession of 2 scores, a Beethoven mass, and 9th Symphony with all of Sir Malcolm Sargent's annotations and signatures. It is quite amazing, every page has dynamics, cues, metronome markings, etc... Somebody informed me that these could be worth a lot of money....is this true??? They are hardback copies, in really good condition....but they are really old (obviously)