Used! Just pulled from a working environment. See photos for actual description if more than one of the same is available it will be subject to slight difference depending on wear and tear. Any attachments shown with each unit is included. 

Ai Description found:

55B-11-PI-111AA

3/2-way Normally Closed (NC) single solenoid piloted valve (Cv 1.4) with accumulator + non-locking recessed manual operator - internal pilot air (interchangeable pilot from internal to external) - Mac Valves (55 series) - 110Vac (50Hz) / 120Vac (60Hz) solenoid - Individual in-line installation - 1/4" NPTF threaded female pneumatic ports + 3/8" threaded female pneumatic ports (exhaust) - Wiring chamber with 1/2" NPS cond. entry - Pneumatic / steel mech. spring reset / Monostable operation - Piston spool valve - Rated for 30...+150psi pressure range - 3-ports 2-positions - H113mm x W46mm x D105mm - equivalent to 55B11PI111AA