Propogation Box?

A few years back I saw in the grounds of a private property what I would call a Propogation Box. It was cube shaped, about 3' square standing on legs about 3' high. The box contained young Yew trees & was called something like a 'Duneman' (my spelling) Box. Can anyone tell me the correct spelling as I'm interested to know more about these boxes & their history.

 

Just wondering if it might have been one of the cases that plant collectors use to use to bring home specimens

I know they are called wardian cases but not sure if that is what you are talking about but here is some info anyway

http://en.wikipedia.org/wiki/Wardian_case

 

Thanks for your reply Dips. No it's not a Wardian Case. Best description would be that it resembles the old-style food safe, used to keep food cool prior to fridges. Instead of the safes perforated zinc panels the propogation box has glass/clear plastic sides with, I assume ventilation slots. I guess it's the sort of thing that research units would use for propogation. I've never seen another one.