You should remove the tubes anyway. Grill or no grill. You couldn't have received it that way.
Einstein The Tube Preamp, Need A Favor From Fellow Owner
I know, its a odd request: I need to ship my Einstein "The Tube" preamp back to Germany for service, but I have misplaced the removable grill that protects the back two rows of tubes. I need the grill for safe shipping. Is anyone who owns this preamp willing to loan me the grill (and fastener screws)? Shouldn't be gone for more than six weeks, and I will of course pay for shipping to/from me (in New York City), and I'll throw in real nice bottles of red and white for your troubles. Would be greatly appreciated.