I'd suggest using a scanner as much detail is missing in your photos. These coat of arms stamps come in different colors (obviously) and can have non-colored or colored backgrounds depending on the year of issue. I'd say your stamps have potential and are worth a better "picture"
Maybe a little above "space-filler" I think. I cannot remember seeing many that were not a bit "distressed" in used condition. I'd rate them as genuine anyway. You have stamps from the 1860's and from two issues as seen by the backgrounds... and a rose-colored cut-out from an envelope.
My father-in-law collects German states...and hopefully I inherit them one day At a guess I'd value them at anything from $2 to $10 each depending on color and quality. Damaged stamps,heavily postmarked etc might fetch 5-10per cent of that,I suspect. Impossible to say the color of most as every scanner does it its own way.