For sale is your choice of Raytheon transistors, CK721, or CK722.  They were left behind in the electronics inventory of my late father, who was an active HAM radio operator for over 70 years, and was a radio and other electronics serviceman for much of his life.  He always kept a generous inventory of spare and replacement parts on hand, for speedy service calls for his customers, available for walk-in customers to his service shop, and handy for his own electronics projects.   All his components were stored in a dry, smoke-free environment. 

These transistors appear to be new old stock.  I opened the folders to photograph the transistors.  They are being sold as is, as found, untested and no guarantees.   (I have no knowledge of testing these electronic components.)

I hope these are transistors that you can use, or keep in YOUR electronics inventory!

Thanks for looking here!