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O-scale 1A 2A 48ea 3d printed

Not a Photo

Frosted Ultra Detail
O-scale 1A 2A 48ea 3d printed
O-scale 1A 2A 48ea 3d printed

Not a Photo

O-scale 1A 2A 48ea

Made By
Not For Sale

Product Description

Kansas State Agricultural College Bulletin
Volume IX April 1, 1925 Number 3

Comparative Tests of Automatic Ventilators

This was a test of automatic ventilators which the test divided into four classes - plain stationary, stationary siphoning, plain rotary, and rotary siphoning. From page 14, I used the Type 1A and 2A plain stationary for my models.  Pages 18 and 19 has dimensions of the ventilators and diagrams. 
What's in the Box
O-scale Roof Ventilators - 48ea
Frosted Ultra Detail
4.6 cm
3.6 cm
7.2 cm

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