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Details and Image
Type
Model No.
Maker
Country
Construction
Material
Date
Scale Length
Area of Use
Linear
Kogyo Sekke Flow
Hemmi
Japan
Plastic
1972 Nov
12.5 cm
Flow in Pipes
Notes:
"Hemmi date code WK. Ross's Catalogue Raisonne indicates this was a promotional giveaway from Yokohama Kogyo Sekkei Co., a firm that designs wastewater systems."
Image 1
Image 2
