Can't really tell
It looks similar to Wilton's Floating Tier stand. You can find some ads for stands like this in ACD, if I remember correctly. Or maybe it was in the cake mags that I get from BAM that come from the UK.
Not the wilton one but is very simular I think its from the UK and is silver instead of white here is a pic of wiltons I just used cake drums instead of the plates that come with it.
Check this site they are pretty expensive compared to wiltons. When I recieved the picture from the bride of the Uk stand I showed her the wiltons and she was fine with it. Ive only used it twice in 3 years not worth buying the other one. this business is expensive enough you don't want equipment sitting around doing nothing. Bride might be able to find a cake decorating supply shop that rents them.
. . . it could be the first one or the last one on this site . . . http://www.weddingcakeessentials.net/Product%20Lines.htm . . . also are available on ebay from time to time (buy it now price is usually good) . . . here is a link to the bottom one that is currently available on ebay . . . http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&Item=230279802163&Category=102424&_trksid=p3907.m29