Missing letter I (egde inscription)
The inscription on the side of the coin should read SO MANY IRONS IN THE FIRE. Some coins look to be missing the letter I from IN to read as SO MANY IRONS N THE FIRE.
This is NOT considered a minting error
The Brunel Paddington Station coin has the inscription SO MANY IRONS IN THE FIRE struck onto a milled edge (vertical line indented).
Sometimes the vertical part of a letter lines up with an indented part of the milled edge, which on this coin can result in a light impression of the letter I - so to the naked eye, it looks like the I is not there.
Writing upside down: SO MANY IRONS IN THE FIRE
The inscription on the edge of the Brunel Paddington Station £2 coin reads "SO MANY IRONS IN THE FIRE". The writing is upside down when the coin is heads side up.
This is NOT a minting error
The 2006 Isambard Kingdom Brunel Paddington Station coin has the inscription SO MANY IRONS IN THE FIRE struck onto the edge of the £2 before the heads and tails faces are struck.
The blank with edge writing in place can fall either way up into the machine that strikes the coin design showing a section of Paddington Station's roof and the name BRUNEL and the Queen's portrait simultaneously.
There is a 50/50 chance that the writing will be upside down. This is not rare and based on mintage figures, about 3,726,125 Brunel Paddington Station £2 coins have the letter text upside down when the heads side faces up.
Heads side: missing / misaligned dots
On the obverse (heads) side of the coin, there are small raised dots around the edge of the silver coloured section.
On some Brunel Paddington Station £2 coins these dots may be offset, so for example - they may appear away from the edge above the Queens head and be very close the the edge or missing from the opposite side (below the Queens neck).
This is common on all two pound coins minted before 2015 and is not considered a minting error.