“I had never used one until Ted asked me to teach him to use his, nearly a year ago now,” replied Ivy. “There were none at the school I was at, and we haven’t any at the office. But I believe that some firms have several of them. They have not been sold in England for very long.”

“Thank you, Miss Tovey,” said Mr. Ludgrove. “Now there is another curious thing which I should like to mention. One day, when I was in your place, talking to your father, I saw you sending out what I took to be accounts, Ted. Was I right?”

“I expect so,” said Ted, readily. “I always look after that side of the business.”

“Would you mind running across and getting me one of the envelopes that you use?”