how many "Always Works" containers in-game?

[maximum]

Looking for some tribal knowledge here. In my searching through Allakhazam and Google, I was able to find only two "Always Works" containers:

Blacksmithing
Dalnir
Forge located in a hallway just outside the Kly Overseer room (bottom level)

Pottery
Temple of Droga
Pottery wheel located inside Droga Jail Pen 1 (A Stone Key gains access)

Are there more? Working on this P99 Wiki article: http://wiki.project1999.com/Always_Works