Altec lansing milestone 950

Hello Lansing guys,
I bought 2 Altec 15" Duplex speakers model 950-8A without cabinets.
I want to build 2 cabinets for the speakers like model Milestone 950.
I do find pictures but no dimensions.
It could be the speakers Milestone 950 were only for the Japanese market because all pictures i find are on Japanese web sites.
I am looking for the dimensions and/or build plans for the Milestones 950 speaker system.
Any help will be welcome and very apreciated.
Thanks in advance.
Frederik.
Attachment 83569Attachment 83570Attachment 83571Attachment 83572Attachment 83573

Those look interesting, I wonder if one could add absorption on the "petals" to smooth the horn cutoff with them, but the smaller cabinet requirement is nice since the more popular brothers take gigantic enclosures.