you mean transistors not trancievers ( they are totally different)
they also have numbers on back
that one is a 222A transistor( look at the numbers on it)
What I would do is gather all the transistors and then look them up to see which transistor has the same function and is the same type as the transistor that I need.
For example a 1234 can work the same as a 5678 and be used interchangeably but a 1234 and a 2222 cannot be used interchangeably. Just look at the datasheets of the transistor you want and the transistor you found. And then just match em up!