I have been a nut for those finishes for quite some time. I had wanted a mod orange set since the late 80's. I am a huge Doors fan and saw the Hollywood bowl footage with John and the mod orange Ludwigs. I did not seriuosly start collecting drums until about 1990 and the mod orange was always on the back of my mind. I did not relize at the time how incredibly hard they were to come by.
My guitar player found my 22,13,16 supra at the local music store a couple of years ago. It had been sold to the store by the original owner. He knew I had been jonesing for one for years and he jumped on this one. I was quite surprised! the 22,13,16 are dated March 26th 1969 and the supra is dated March 20th 1969. The serials are all close. I even got the original logo head as well as the back.
I aquired the rock duo psych red on e-bay about a year before I got the mod orange. It was listed on e-bay with a BIN for $1100.00. It turned out that the set was only an hour away from me and the seller actually delivered it to me! It needed a good cleaning but otherwise the color is very strong. That set is dated Dec 12th 1968.
I have had the pleasure of seeing Bun E. Carlos' collection and we have a lot of the same interests. WFL drums and 60's Ludwigs. He has a Jazzfest in mod orange that is dated June 1967. That is the earliest I have seen that finish dated on a drum. Psych red and mod orange came out together. I think the first ad appeared in the spring 1968 issue of the Ludwig drummer. I love those finishes for sure!