Thank you!!!I have to say this looks EXACTLY like my hen! She actually laid her first egg yesterday and it's IDENTICAL to the one you're holding. I'm not an expert and not sure what chicken she is but I can point you to the thread where we discussed my chicken and kinda came to the conclusion she may be a welsummer mix?
How funny! Thank you so much!https://www.backyardchickens.com/threads/strange-egg-color.1432023/
^This is the link to the thread where we discussed what my hen could be but if you see the pictures they are IDENTICAL! Could be twins!