Vectores de fine line

Hopper feed grinding machine

Square headed carriage bolt

Flat head bolt with point

Round headed carriage bolt

Flat head screw bolt

Mushroom head bolt

Long threaded carriage bolt

Square headed lag screw

Fluted bolt with nut

Flat headed nut bolt

Countersunk head screw

Round headed bolt with nut

Collar headed bolt

Flat headed carriage bolt

Wheel hoe cultivator

Wheel seeder

Wire stretcher

Push lawn mower 02

Wheel hoe

Grafting chisel

Long handled spade

Cupid with a lute

Hand striking an anvil

Crown above astrolabe roundel

Balance held from a cloud

Man with a spade

Two figures washing hands at a basin

Aneroid barometer dial

Wheel in a triangular frame

Escapement wheel and pallets

Train of spur gears

Sectioned shaft coupling

Sectioned bearing and pulley

Scroll cam on a shaft

Radial cylinder wheel

Weight testing machine

Crossed dividers

Mechanical leg

Sectioned rack jack

Wheel hub and brake

Hopper fed toothed roller

Hydrant in section

Pressure gauge

Twin pipe valves and nozzle

Suspended cylinder with chain

Hopper feed grinding machine

Flywheel machine

Shaded skull in profile

Grass with cylindrical spikes 01

Grass tuft with slender spike

Slender grass with narrow spikes

Grass with two slender spikes

Rush with club head

Foxtail grass with blade

Grass with branched panicles

Grass with two-ranked spikelets

Grass panicle with broad blade 01

Tufted grass with slim panicles

Tufted grass with knobbed spikes

Grass with bristled spikes