I wrote the date on the back of the photograph.

Oh, not to be forward, but I did happen to write my home phone number on the back of the card.

She wrote an address on the back of the note.

The town written on the back of the black Mary picture.

"Are you sure he didn't write anything else on the back of the painting?"

"When did you see what was written on the back?"

I've written my cell phone on the back of this one.

She wrote her home and mobile numbers on the back.

"Thanks," I said, watching him turn over the note and write on the back.

They were usually written on the back of the envelope.