With my recent ARRL Handbook acquisitions, I consider my collection pretty much complete now. I’ll add newer ones as time goes on and if someone is getting rid of older ones, I probably won’t turn them down. I feel like my collection covers the history of amateur radio from the ARRL Handbook perspective pretty well now.
From the left there’s the 1st edition 1926 ARRL Handbook, followed by 1927, 1931, 1944, 1950, 1956, 1963, 1970, 1971, 1974, 1979, 1980, 1993, 2005, 2012 (my very first handbook from when I first got my license), and finally the 2014 ARRL Centennial edition Handbook. The next one I end up purchasing will be the 100th edition 2023 Handbook.
I’m pretty happy with my collection. It’s a wealth of excellent reference material and project ideas.