in structure, 'pattern', labels, materials etc.. it looks similar to a Berghaus jacket i bought in about 1993. 'Extrem' and 'Trango' were always Berghaus's flagship marques - their high end mountaineering kit, rather than middle-of-the-road stuff for hill-walking or dogging. the hood looks good, the chest pockets are positioned so you can use them with a climbing harness etc... at a rough guess, i reckon it would have retailed around 1990 for about £250.
its a decent mountaineering/hillwalking jacket - the only issues for me would be how its been washed/used/treated etc.. and whether the Gore-tex and fabrics that were available 25+ years ago would be as breathable/light as a more modern jacket. i would say however that its likely to be somewhat more robust than a modern, much lighter jacket.
