I have identifiated Osella's unknown small letters sponsor from 1980 It is PubbliMais torino a local sponsor advertisement company displayed after Goodyear logo at left or right in white background
also i have identified countries stamps fron Gijs Van Lennep's Surtees-Ford TS7 car during 1971 Dutch GP like :
Poland- World Sallplane Championship Leszno 1968
Cuba-1970 Carribean-Central American Games fencing
rear wing:
Guinea-Mexico 68 Boxing
Ecuador-Mexico 68 Track & Field
Paraguay -Football/Soccer Olympic champions Uruguay-Amsterdam 1928 before Inaugural Fifa World Cup
Additional question from 1st August 12, 2019 post :
It this true displayed under after Sirena is a Australian Sirena distributor or Sirena brand ?
Edited 6 time(s). Last edit at 10/12/2019 05:04PM by BeastifulleonofF1.