This is a great resource to introduce sea vessels and combat into your game. It details movement, components and quite a few other aspects to get a sea campaign or adventure up and running.
The scan quality (as mentioned by the publisher) is quite poor for a product purchased through an official store.
Page 123 BALLISTA & MANGONEL FUMBLE TABLE and CATAPULT & TREBUCHET FUMBLE TABLE. As a mangonel is a catapult it doesn't make sense to me to have them on seperate tables.