Sir Henry Herbert's Office-Book

I should be glad to know if any of your readers can tell me the "whereabouts" of Sir Henry Herbert's Office-Book, a MS. frequently referred to by Malone, Chalmers, and Collier. Sir Henry Herbert was Master of the Revels to King James the First, and the two succeeding kings, and the said MS. contains an account of almost every piece exhibited at any of the theatres from August, 1623, to the commencement of the rebellion in 1641. Malone, in his Historical Account of the English Stage (edit. Boswell, iii. 57.), says, in a note— "For the use of this very curious and valuable manuscript I am indebt…