Odd subject, food for thought !!!
I own one 1963 Coupe Deville and two 1962 4dr Cadillacs. When I took delivery of these three Cadillacs through the years, I noticed they all had the old fashioned radiator bug screens like many vehicles had back in the day. Recently I began wondering why & when these bug screens went away. Then I thought back to the time I quit seeing these screens, ( Mid - late 1960's ). After thinking about what changed about that time in the area where I grew up, ( N/E Oklahoma), it hit me ! In the mid sixties we were introduced to self serve high pressure car washes ! I am sure it was the same across the country. For a quarter at a time you could wash and rinse your vehicle and wash under the hood also. This would have lessened the need for the screens since the bugs and debris could be washed from the radiator or A/C condenser regularly by the vehicle owner. Again, odd subject but does this make sense ? Any other explanations ?