I have got my engine numbe except the last two digits, is the last digit a letter?

NGA********* How many digits is the supposed to be, ive got 12

Mines 7 digits after the 3 initial ones.

Cheers

Rich

Normaly three engine type letters, ie NGA then two letters and 5 numbers.

Just took a photo and change the effects

The number is NGA WS then i have 5 numbers and i cant make out what is on the end, i think its a letter A , Anyone know what it is????????

[Edited on 12/1/11 by rich201283]

Might help if you posted the photo!?