Hello

I am posting today because I have been curious about an error that appears in my Med Lab.  When the building was introduced in the Fall of 2014, I had bought the other 2 centrifuges, unaware that if I would have been patient, the game's Daily Roll Call would eventually grant me free ones.  Because of the Daily Roll Call, I now have an extra centrifuge sitting in my inventory.  I can not use, I can not sell it, and it is making me worried.  I see it much like my own Appendix - something extra and useless, but a potential problem when "infected".  I would like to sell it for resources, much like we can do for rewarded equipment in the Armory; which would solve this problem, but nothing in the Medical Center can be sold, apparently.  Thank you for your time.