<b>HD 625 button cell</b>. *Was* a light meter battery in my Zenit TTL and apparently mercury-based. Dead, as it <a href="//commons.wikimedia.org/wiki/File:HD_625_button_cell_(leaked_decomposing).jpg" title="File:HD 625 button cell (leaked decomposing).jpg">leaked</a> and messed up my camera.
<a href="//commons.wikimedia.org/wiki/User:Multicherry" title="User:Multicherry">Multicherry</a>
2015-03-07 19:29:36
<span class="int-own-work" lang="en">Own work</span>