I have completed the research but I do not have good news.
As I have been told by book dealers, condition is a huge factor plus how many copies were published is the other major factor in determining value. Although the oldest printed book is the Bible (1450s), a collection of very old Bibles is worth very little when compared to other books of the same period because so many copies were printed at the same time.
These are the retail values I found in the numbered order you gave me...
1. $45 - perfect condition; #14 - good condition.
2. $25 - excellent
3. $35-40 - good
4. $35-40 - very good.
I truly wish I had better news.
In general, a private seller to a dealer, via consignment or at auction can expect 30-50% of estimated retail value.
Insurance replacement values are usually about 10% more than retail values.
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