I found in my late dad's stuff two penny collecting books. #1 - 1909 to 1940 and #2 - starting 1941
The first book has 23 empty slots, the 2nd is complete up to 1972.
Looking in the 1st, the empties are the low-production number coins. The lowest that are actually in the book are:
1912-D @ 10.4M
1921-S @ 15.3M
1924-D @ 2.5M
1924-S @ 11.7M
1928-S @ 17.3M
1932 @ 9.1M
1932-D @ 10.5M
1933 @ 14.4M
1939-D @ 15.2M
Can anyone give me an estimate of the value of this collection? The coins are circulated, some are fairly worn, a few have visible damage.