What does 逆再生ボタン look like on SoftBank?

On SoftBank it is the design shipped in 2014, shown above at full size. Older revisions are listed beneath it.

When did SoftBank add 逆再生ボタン?

SoftBank first drew 逆再生ボタン in 1999, released 1999年1月1日.

SoftBank Corp. has shipped 8 versions of 逆再生ボタン. Each is dated, so you can see when the design changed.

SoftBank

SoftBank Corp. has drawn 逆再生ボタン 8 times. Every revision SoftBank has shipped is below, newest first.

What does 逆再生ボタン look like on SoftBank?: On SoftBank it is the design shipped in 2014, shown above at full size. Older revisions are listed beneath it.
When did SoftBank add 逆再生ボタン?: SoftBank first drew 逆再生ボタン in 1999, released 1999年1月1日.
How many times has SoftBank redrawn 逆再生ボタン?: SoftBank Corp. has shipped 8 versions of 逆再生ボタン. Each is dated, so you can see when the design changed.

SoftBank artwork for this emoji spans 1999 to 2014.