From Fallen London Wiki

Hi, I just got Wrecking Boots and my favour went from 325 to 425.

However, I already, from previous years, have Wrecking Boots, Jillyfleur, Nuncian, Decanter, Mary Lloyd, and so on. If it is calculating favour based on the number of items in inventory, my favour should be higher.

Since I already had 1x Wrecking Boots, and now have 2x, I wonder if the value of them is actually 50?

Perhaps the same for other items (Jillyfleur, etc.)?