he bought it, gave it to a colleague to bring to J'lem then donated it.... I wonder if only after a week Eisenstein would remember?

Can anyone give us a brief description of the physical dimensions of Einstein's telescope recently found in Jerusalem?

I was rather surprised to hear that the scope had gone missing. I refurbished the planetarium at Givat Ram in 1987 and the telescope was on exhibit in the main hall at that time. It is an 8 inch Newtonian refractor on an equatorial mount (no drive). It's evidently homemade. From what I understand, a friend made it for Einstein when he was at Princeton. He had told the friend, "From when I was a child, I have always wanted a telescope, but now if I buy one, it will become commercialised." So the friend, an amateur astronomer, built him this scope. I hope it finally gets the attention it deserves! -Yael

Correction: the scope is an 8-inch reflector, rather than a refractor.