From what I've read after scouring the web for info on Raleigh UGLI forks, it seems they made 2 versions,
1. Alloy crown and dropouts, steel steerer and blades, with welded on circular canti bosses and a weight of approx. 900 grams
2. Alloy crown and dropouts, titanium blades, steerer? not sure (but I have a feeling they were steel), square folded sheet type canti bosses that were riveted in place and a weight of approx. 700- 750 grams
I haven't actually got my hands on a pair of either version to be 100% sure the above is totally accurate.