This is a replacement base for standard masts

Model Number: 47008

plus separate rooftop piping

Intensity of noises varies with motion

Model Number: RG5152

Micro-Trains 98002381 Z Scale C&NW EMD F7B Powered Diesel - Standard DC #309 Material Type_Aluminum This is a replacement baseThis is a Micro Trains 98002381 Z Chicago & North Western EMD F7B Standard DC #309. CNW began painting F units in the simplified yellow green with Chicago and North Western spelled out on the flanks and nose shields by 1961. The engines retained their four digit 4000 series numbers until 1971 72 when the remaining F units that hadnt been traded in on newer units were numbered into the 200 series for A units and the 300 series for B units with CNW