So I was wondering what the value of these razors are in great condition, but no case? Gillette Double Ring Rocket HD - Made in England
Really depends on the actual razor. Notice there is no photo of the doors. I know that doesn't help much, but the double ring rocket is a superlative shaver. Condition does not change the shave, but the addition of excellent condito0n and documents (case, literature, etc.) will. While the double ring Rocket is seen by many as the best, frankly, if what you want is a good shave, I would recommend the #58 or a # 16. Even a better shave in my personal experience. I would sell my double ring Rocket before either of the above. The double ring Rocket, and several other English Gillette's, are priced above what I would consider reasonable, they have been popular of late. But the market will decide what is reasonable for any individual razor.