LEFT INSIDE: A Soldier's Tale

It's been a very long time since I've found anything inside one of my books.  This one was one of those rare instances that I came across while I was actually reading the book.  Tucked into page 79 of my copy of Murder by Request by Beverley Nichols was this:

Transcription:  "Dear Major Steeves,  Thank you for you order and hope the book is to your satisfaction.  I would also like to thank you for your service to the country.  Yours sincerely, B Storey

Send cheque (in another handwriting) -- I'm guessing Major Steeves wrote that.

Remember the days when a bookseller would you send a book prior to your paying for it?  I met only one person in my lifetime who would agree to searching for a book and send it to a customer trusting that payment would follow.

There is nothing noteworthy on page 79 of the book where I found the note.