Folding stairs, especially light wooden stairs

KASINSKI BOGUSLAW / MOS BARTLOMIEJ | European Patent Office | 2016

Folding stairs, especially light wooden stairs

KASI SKI BOGUS AW / MOS BART OMIEJ | European Patent Office | 2015

British Standard specification for wooden gates (forming one of series of british standard specifications for joinery units)

Engineering Index Backfile | 1934

British standard specification for wooden windows, casements and solid frames, double hung sashes and cased framed windows

Engineering Index Backfile | 1935

Path and wooden stairs in snow, Bronx Park, Bronx, N.Y., 1904.

Stonebridge, George Ehler | BASE | 1904