1968 Hanover Passier "Schultheiss" Dressage Saddle

I am trying to determine what my antique Hanover Passier "Schultheiss" dressage saddle is worth. This saddle was built in April of 1968 and the serial number is 131 749. It is Havana-brown, has a seat size of 17", an extra wide tree of KE 29 cm (11.4 inches), and no gusseted panel. This saddle is in very good condition for its age. The only thing it would need is 1-2 stitches put in very front of the left side of the saddle as they have come loose, but this in no way effects the saddles use. You can't even tell they are missing when the saddle is on a horse, and only slightly noticeable when its just sitting on a saddle rack (see first photo). This is a very beautiful saddle, the leather is soft and supple, and there are no major blemishes. It comes with stirrup leathers and irons as well. This saddle new was over $3000 and these saddle are known to be the top of the line, lasting forever if they are taken care of.