Richard
Do the wheels on your car have the little lugs welded onto the rims to take the fixing set-screws for the rim embellishers? It is only the Series 1 1300 'S' spec cars that have them together with hub-caps that have the riveted-on Lancia shield. 1200 and 87bhp 1300 have plain hub caps (as seem to be on your car in the photo) and no embellishers. If the lugs are there, then a thin-wall rubber tube sleeves over the lug, which is slightly longer, so that the embellishers bed on to them and does not rattle against the wheel-rim, metal to metal.
If you are still looking for embellishers, I have a set of 4 new ones, as re-manufactured for Michael Newberry, in the late 1980s. Send me a PM.
Regards - Roddy