Studied from its original page

Perozzo stereogram

Perozzo stereogram · Les Solides / stéréogramme (Levasseur 1885) · Incolarum descriptio (plate title) · stereogramma · three-dimensional population pyramid

Made by: Luigi Perozzo
Year: 1880
Field: Statistics
Kind: Data display
Room: How a group spreads

See the original page — fig. V, plate 'Tav. I', facing p. 247 (archive leaf n289)

Published 1880/1885 (A) and Perozzo (1916), Berg (1887) and Levasseur (1911) all died before 1955 (B ended 1986 at the latest).

The data it needs

census axis (left to right) · temporal · year
age axis (back to front) · ordinal · years
count height · quantitative · persons
births back edge (optional) · quantitative · persons per year

Built in 6 steps, as its maker described

pp. 246-247; fig. V (the plate 'Tav. I'), archive leaf n289

Skeleton drawing, not the original plate

3 other forms share this skeleton

Source

Perozzo 1880, Annali di Statistica 12

Attribution checked against the source

Searches, not citations

archive.org commons.wikimedia.org scholar.google.com