1914 Helps for roofers and sheet metal workers (1914)
L.D. Berger · L.D. Berger · leaf 99
^j»g L. D. BERGER, PHILADELPHIA, PA. Plain Dampers. Sizes: 4 Inch. AA inch. 5 Inchi 5>i iuch. 6- inch, 7 inch. m^ n -^M7 Price, Jjcrpouud „—f These Dampers are all gauged t*-a true size to fit tlie pipe, and willnot turn in the rod. Hot Air Sizes—7,8. ^%, 9. 10, n and 12 incheft. ^ \^\ ji…
Roofing · Sheet metal roofing · Sheet metal flashing and trim · Gutters · Metal-framed skylights · Finials · Weathervanes · Cornices · Heating stoves · Dampers · Diffusers · Registers · And grilles
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