Clue 1
Do you know who this is?
Clue 2
His lifespan might help you find him. Or a reverse image search.
Solution
This is Alexander Graham Bell. Knowing a little bit about why he's famous--perhaps his greatest invention--will go a long ways towards helping you solve the rest of this card.
Clue 1
In relation to the theme of the card, what do numbers normally have to do with?
Clue 2
So how might the topic of "telephone numbers" relate to the background image?
Solution
Each number is a unique country code for telephone dialing. Looking up the countries and taking the first letter of each will give you the plaintext: My name is Moira Saint Claire.
Clue 3
How is each country unique... regarding telephones?
Clue 1
More numbers, but they don't look like numbers to call someone...
Clue 2
And if you're not calling someone on the phone, what might you be doing?
Solution
Many old cell phones texted by scrolling through multiple letters on each numerica key. So to get to an 'S' for example you would have to press the 7 key four times. Using such a keyboard to decode the messages, you get the following in plaintext:
Clue 3
Of course, we don't text like this anymore. But an older cell phone might.
Clue 1
A lot of modern cell phones no longer have physical buttons.
Clue 2
If you decode the two postage stamps (using a simple alphanumeric substitution) they will, along with the background image behind the text at the top, point you to some specific technology.
Solution
The squares represent digital keys on a touchscreen keyboard. Following how you would "swype" to write a word, you get the plaintext word: Portland.
Clue 3
Even though SwiftKey itself isn't used anymore, a lot of similar applications exist, and you've probably used one yourself.
Clue 1
More numbers, but they don't look like numbers to call someone...
Clue 2
And if you're not calling someone on the phone, what might you be doing?
Solution
Many old cell phones texted by scrolling through multiple letters on each numerica key. So to get to an 'S' for example you would have to press the 7 key four times. Using such a keyboard to decode the messages, you get the following in plaintext:
Clue 3
Of course, we don't text like this anymore. But an older cell phone might.