Rostrum and support structure

摘要: A support structure for a rostrum includes first A-frame; and at least second A-frame, nestable retractable into the A-frame. The may have an open central area A-frame be substantially same as, but smaller than, of At one means is connected to each supporting load, wherein upper portion extends from co-operable with another telescopic configured expandable between retracted, stored position, extended, in use position.