Found 19 symbols starting with IR:

Ireland crossroads with a major road sign.
Ireland crossroads with a major road sign.
Ireland junction at corner with a minor road sign.
Ireland junction at corner with a minor road sign.
Ireland junction with a minor side-road sign.
Ireland junction with a minor side-road sign.
Iron
Alchemical symbol for iron and the planet Mars.
Iron (alternate #1)
A symbol for iron in alchemy and early chemistry.
Iron (alternate #2)
A symbol for iron in alchemy and early chemistry.
Iron (alternate #3)
A symbol for iron in alchemy and early chemistry.
Iron (alternate #4)
A symbol for iron in alchemy and early chemistry.
Iron (alternate #5)
A symbol for iron in alchemy and early chemistry.
Iron (alternate #6)
A symbol for iron in alchemy.
Iron Dragon egg
Icon used to indicate an Iron Dragon egg in the game DragonVale.
Iron filings (alchemy)
A symbol used in alchemy to indicate iron filings.
Iron Front Symbol
The Iron Front (German: Eiserne Front) was an anti-Nazi, anti-monarchist, and anti-communist paramilitary organization formed in Germany on 16 December 1931.
Iron vitriol
The symbol used in alchemy and early chemistry to represent iron vitriol.
Iron, Any Temperature, Steam or Dry
Iron, Any Temperature, Steam or Dry
Iron, High
Iron, High
Iron, Low
Iron, Low
Iron, Medium
Iron, Medium
Ironwood Dragon egg
Icon used to indicate an Ironwood Dragon egg in the game DragonVale.