The image features a stylised fish with the legend "ΙΧΘΥΣ" (" ἰχθύς"). See the Wikipedia article en:Ichthys for information.

Source Image created by User:Erin Silversmith to replace .
Uploaded over the top of a similar image (without text) by MesserWoland that was redundant to Image:Ichthus.svg
Author MesserWoland, Erin_Silversmith, AnonMoos
(Reusing this file)
Public domain I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
In some countries this may not be legally possible; if so:
I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

SVG development
Inkscape to text.svg
This Inkscape, and then  manually edited.
Translate   This SVG file uses embedded text that can be easily translated using a text editor.