We have the Gold Seal, the D. Gold seal. Not mentioned often enough is that the medical cannabis community, not only in California, but in every state knows of D. Gold. He's the pioneer, an undisputed legend known to everyone who has quietly labored this field for any length of time. His book Cannabis Alchemy was published in 1973, sold over 100,000 copies and was revised and republished in 1993. NASA scientist Dr. Apel, also a pioneer.  D. Gold and Dr. Apel are a key part of SKTO. They bring tremendous luster and cachet to Medical Green's branded Berkeley Bio's products.