What year did Volkswagen start putting ac in beetle?

Volkswagen authorized DPD and Delanair as volkswagen authorized accessories to be installed at vw dealers beginning in 1961, in 1968 vw bought Delanair and Porscheair and combined the companies to be VPC (Volkswagen Products Corporation) to make air conditioners exclusively for vws. they were never a factory installed deal even up to the last aircooled beetles in 1979, and buses in 1982. they were always a dealer installed option. GOOD LUCK finding any these days as they were an expensive and rare option back in the day. today, ICEAC industries in San Diego, CA and Gilbert Interprises in Florida offer modern day aftermarket kits for beetles and buses, they work great, but dont have the period look in any fashion.