570 Lexington Avenue/General Electric Building
Location: New York, NY
Built: 1931
Height: 640ft/200m
Floors: 50

7.75" Model Dimensions (1:1000 scale)-
Height: 7.75in/19.7cm
Length: 1.75in/4.4cm
Width: 1.25in/3.2cm

10.25" Model Dimensions (1:750 scale)-
Height: 10.25in/26.0cm
Length: 2.5in/6.4cm
Width: 1.75in/4.4cm

15.5" Model Dimensions (1:500 scale)-
Height: 15.5in/39.4cm
Length: 3.75in/9.5cm
Width: 2.5in/6.4cm

22.25" Model Dimensions (1:350 scale)-
Height: 22.25in/56.5cm
Length: 5.25in/13.3cm
Width: 3.75in/9.5cm

Summary of Model Scales:
7.75in (0ft 7.8in)/19.7cm: (1:1000 scale)
10.25in (0ft 10.3in)/26.0cm: (1:750 scale)
15.5in (1ft 3.5in)/39.4cm: (1:500 scale)
22.25in (1ft 10.3in)/56.5cm: (1:350 scale)

The pictures shown are of the 7.75 inch model.

The second picture shows the 7.75in, 10.25in, 15.5in, and 22.25in models.

The larger sizes have slightly more detail.