daoartworks.com

On my webpage, there is a strange icon that appears by the slideshows and image galleries in SOME browsers or computers but not all.  For example:

in my Chromebook, it does not show.

On one Windows 10 computer, in Google Chrome Version 55.0.2883.87 m (64-bit), it DOES appear.  But on another computer - same OS and same version of Chrome, it does NOT appear.

On the Windows 10 computer where it does appear in Chrome, it does NOT appear in Firefox 50.1.0.

On my Android phone, it DOES appear.

Does anyone know what this is, why it appears on some but not all web displays, and/or how to get it GONE?

It's so puzzling.  Any insights would be very welcome.  Thank you

deb