A sub—station floor plan showing the engineering structure of a typical resident during 1911 illustrating conventional drafting measurement and symbols.

Substation Floor Residence Plan

A sub—station floor plan showing the engineering structure of a typical resident during 1911 illustrating…

A sub—station section of a typical 1911 residential house illustrating structure for drafting.

Resident Sub Station Plan Section

A sub—station section of a typical 1911 residential house illustrating structure for drafting.