WHATS THE VALUE ON ORIGINAL F.W FROHAWK CHROMOLITHOGRAPHS??

[harleymaxx16]

I have three original F.W Frohawk Chromolithographs. One has 6 butterflies on it titled M AURINIA FORMS, on grey card. Another has 2 Butterflies on it, on cream card and is signed. and the other has 3 butterflies/moths and titled A CORYDON and is dated 24-8-37.

Would anyone have any idea as to the value of these originals. Thankyou for having a look

[siddieswans]

There are quite a few for sale on eBay. What they might sell for is another matter.