Measurements:
Cover 8 1/2x3 1/4 inches, on the long side score at 3 1/4", 3 3/4", 7" and 7 1/2". Round the corners on the end at the 7 1/2". This will be the front flap.
Mats for the front cover are 2 @ 3"x3"
2@ 3/8"x3"
1 @ 3/4"x3"
Cut 3 page inserts that are 3"x12" score on long side at 3, 6 and 9". Accordion fold and glue the ends together making a long train of them.
Mats for the page inserts are cut at 2 3/4"x2 3/4" you will need 23 of these.
Don't glue the mat on one end of this, this is where you will glue to the inside of your cover. Glue the cascading part to the cover and make you belly band to close. You can also use a magnet to close.
Belly band is cut at 1"x8 1/2" and the mat for this is cut at 3/4"x 8 1/4".
Glue these together then you will need to score at 3 1/4", 3 7/8", 7 1/8" and 7 3/4"