Civil flag: Flown by citizens on land

 State flag: Flown on public buildings

 War flag: Flown on military buildings

 Civil ensign: Flown on private vessels(fishing craft, cruise ship, yachts, etc.)

 State ensign: Flown on unarmed governmental vessels

 Naval ensign: Flown on warships

A single design may serve several roles like here: (this is both a war flag and war ensigns)

: Normal/de jure/obverse side

: Proposed symbol that was never adopted

: Reconstructed design based on past observations

: Reverse side

: Design is an acceptable variant

: Alternate version of a design

: De facto version of flag

: Obverse and reverse sides are different designs

: Obverse side is meant to hoisted on the observer’s right

: Officially authorized flag to represent respective country

: Abandoned flag that was used in the past(Not originally a part of Whitney Smith’s set)

: Reverse side is a mirror side of obverse side

: Reverse side is congruent to obverse side

: Information on reverse side is not available

: Flag is hung vertical by hoisting it on a normal pole, and then turning it 90 degrees

: Flag is hung vertical by rotating the design first

: Vertical hoist method for flag is not available

: Design has no element that could be rotated

: Design is only hoisted vertically