Standard SR-F23
The design of the carrying case is similar to that of the one for the SR-F22. However, in contrast to the pigskin used on the SR-F22 case, this one is made from a high quality shoe leather. At least in Japan, the leather case was sold separately at a price of 500 yen.
The STANDARD name embossed on the front of the case, the company logo is stamped on the back and, although not pictured, the carrying strap is also embossed with the words "STANDARD RADIO CO., LTD."
[08.01.04] Update: I added the list price for the leather case.