You will need to have these looked at in person by a Fine Art Appraiser in order for them to give you the values on these. They will need to inspect them to determine the value. Without a signature these cannot be valued on line.
You can find an appraiser in your area online or in the yellow pages. You might also contact a local Art Gallery they can help find a Certified Appraiser, in your area.
Or if you like I can find a list of appraisers for you.
That is a very good idea. I also believe these are very important. They should know someone that can help you. You might try the Historical Museum also. Your collection sounds wonderful!
Good luck, if you need me you can always come back to this question.
I think you need to take your art work to an appraiser so they can look at them in person. These are important works and need to be looked at by an art appraiser. These cannot be valued online. Since we cannot see them in person.
I can get you a list of appraisers you can contact in your area if you need me to.
I think you should, just check the yellow pages and also check the International Society of Appraisers. They have a large listing.