Byproduct of 18 weeks of isolation - going through old closets full of past lives etc.  I bought these years ----decades ---- ago while I was in the Navy, and I still use one till this day - some 50 years later.  These however are absolutely NEW -  MINT CONDITION, never used, flawless,  Heavy glazed ceramic cup with a generous 10 oz. to the brim - so plenty of room for your usual 8 oz. and walking about the house-ship-sailboat without spilling a drop.

Classic !!!