GP38-2 Control Stand

Might someone ID location #11 and any other corrections? Thank you.

1 Train Radio
2 Timing Air (ASC equipped)
3 Air Gauges
4 Load Current Indicating Meter
5 Speedometer
6 Heater switch
7 Control and Operating Switches
8 Light Dimmer
9 Dynamic Brake Circuit Breaker
10 Throttle Handle
11 ??
12 Heater
13 Reverser holder (not used on LIRR)
14 Deadman pedal
15 control stand access hatch
16 Headlight Switch-Rear
17 Auxiliary Light Switch-Rear
18 Ground and Gauge Light Switches
19 Indicator Light Panel
20 Air Horn Valve
21 Automatic Air Brake Handle
22 Sanding Wobble Switch
23 Bell Ringer Valve
24 Cut-off Valve
25 Independent Brake Handle
26 Headlight Switch-Front
27 Auxiliary lights-Front
28 Reverser Control
29 Dynamic Brake Handle location

# 21 is the Automatic Brake Valve and Train Order Holder.

#11 looks like the ASC whistle with a screen around it to protect the whistle.