Birthday Card to his Sister Ernestine

Kimberly Teichert Parker has a large chunk of documents relating to Frederick's sister Ernestine, which she has gracefully posted online. While combing through these documents, I found this birthday postcard Fred sent to her. It reads:

"Birthday Greetings for your fourty fifth birthday, from your brother Fred + family and wishing you man more happy birthday's. Your brother Fred."

Nothing too interesting here. We know that the postcard was sent in 1912, since Ernestine was born in 1867 and Fred mentions her 45th birthday. We learn that Frederick was in correspondence with his family at this time. This postcard has no stamp on it, so it must have been sent in an envelope, likely with a now misplaced letter. The card also notes that it was printed in Germany, so he may have picked up this card while on his mission, or equally likely one could purchase cards that were made from Germany in the United States. Besides this, we know that Frederick likely referred to himself as "Fred" amongst his family members. Pictures of the front and back of the postcards are posted below.