Tim,The most valuable warrants are a form type with hand written amounts(from $1.80 to $40.00) the rest are all around the same .Of course there is variation as to condition etc..There are twelve types of $2.00 Ark.Warrants.Some printed on white paper others blue. One two dollar treasury warrant is listed as rare type 39A .It is green, red and blue. Is there any printing on the back?Size of Warrant?Some say War Bond. Others this is missing.Usaully the signature ink has etched through the note and is visable from the back.All are considerately rare.1964 values listed from from $8.00 to $32.00.Possibly double that.All have serial letter B the type.The one I have was issued Oct.19,1863(My wifes birthday!Of course the year is not correct).Hand signed F.B.Cummingham.Serial number also hand written in two places.If you can scan,front and back, and E-mail me I might be able to help farther. Hope this helps...