A hipotrochoid plotted with inkscape's spirograph extension.
萬花尺
2014、curve、demonstrate、extension、function、geometry、hipotrochoid、inkscape、Lazur、math、mathematics、metalworks、parametres、parametric、plot、spirograph、URH
2014、曲線、演示、延期、功能、幾何、hipotrochoid、Inkscape中、天藍、數學、數學、金屬工作、參數、參數、情節、萬花尺、URH
資料來源：openclipart ( https://openclipart.org/ )

A loading pin wheel or an aperture from some type of camera.
裝載輪
aperture、camera、pinwheel
光圈、相機、風車
資料來源：openclipart ( https://openclipart.org/ )

made on Android tablet software Infinite design with .svg support https://play.google.com/store/apps/details?id=com.brakefield.id
與曲線的抽像樣式
art、drawing、painting、upload2openclipart
藝術、畫畫、繪畫、upload2openclipart
資料來源：openclipart ( https://openclipart.org/ )

Deaf alphabet E sign. Originally from commons.wikimedia.org/wiki/File:Asl_alphabet_gallaudet_ann.svg
聾人字母E.
alphabet、deaf、deaf alphabet、hand、letter、mute、sign、sign language
字母、聾、聾人字母表、手、信件、靜音、標誌、標誌語言
資料來源：openclipart ( https://openclipart.org/ )

I guess that is a moon in the background, and it sure looks like this flying horse is singing along with the boy playing the harp. Cool. (This comes from the amazing public domain book "The Man with the Hoe" illustrated by Howard Pyle.)
飛馬和騎士
boy、classical、flying、For Use、harp、horse、man、music、mythical、Pegasus、vintage by fb、wings、Wood Cuts
男孩、古典、飛行、用來、豎琴、馬、人、音樂、神話、飛馬、由fb復古、翅膀、木材切割
資料來源：openclipart ( https://openclipart.org/ )

From a drawing in 'The dog in health and in disease : including his origin, history, varieties, breeding, education, and general management in health, and his treatment in disease', Wesley Mills, 1895.
狗的剪影
animal、canine、dog、mammal、pet、silhouette
動物、犬、狗、哺乳動物、寵物、輪廓
資料來源：openclipart ( https://openclipart.org/ )

A sketching pad (taken from openclipart.org/detail/58231) showing some basic shapes modified from the original town sketch.
墊與街頭素描
basic、education、pad、remix+16417、remix+58231、school、shapes、sketching
基本、教育、墊、混音+ 16417、混音+ 58231、學校、形狀、素描
資料來源：openclipart ( https://openclipart.org/ )

Another old sketch of some elephant bookends holding up some books. Ink pen from 1998.
大象和書籍
animals、bic、books、elephants、filter woodcut、ink、learning、pen、reading、shelf、sketch、upload2openclipart、vectorized
動物、BIC、圖書、大象、過濾木刻、墨、學習、噴、讀、架、草圖、upload2openclipart、矢量
資料來源：openclipart ( https://openclipart.org/ )

This is a vector of a young Joesph Stalin, leader of Communist Russia. The inspiration comes from the link below:upload.wikimedia.org/wikipedia/commons/6/6e/Stalin_1902.jpg
年輕的約瑟夫斯大林
Communism、Communist、Famous-people、Famous People、Joseph、Joseph Stalin、Moscow、Russian、Russian Communist、Stalin、Young Joseph、Young Russia、Young Russian、Young Stalin
共產主義、共產、著名的人民、名人、約瑟夫、斯大林、莫斯科、俄語、俄羅斯共產黨、斯大林、年輕的約瑟夫、年輕的俄羅斯、年輕的俄羅斯、年輕的斯大林
資料來源：openclipart ( https://openclipart.org/ )

I isolated the guy because, well, he deserved it!Source: Punch Magazine 1853https://archive.org/details/punch24a25lemouoft
騎著馬穿著潛水服清洗乾淨
cheval、diving suit、habit de plongée、horse、scaphandre、strange、étrange
馬、潛水裝、潛水服、馬、宇航服、奇怪、奇怪
資料來源：openclipart ( https://openclipart.org/ )