This tiny pedestal eggcup is from the New York Central Railroad. The pattern is "Mercury" made by Syracuse China.
Condition is exquisite with absolutely NO cracks, chips, flakes, or repairs.
Mercury ware was produced from the late 1930s until 1967. As documented in "Official Guide to Dining Car China" (McIntyre) the smaller pieces carried only the NYC letters. An identical egg cup is pictured in the book.
The bottom marking says DESIGN COPYRIGHTED, with no other marks. This is the "usual" for these teeny-tinies.
New York Central Railroad Mercury China Single Egg Cup
$149 $180 SALE