Unknown circuit part

[James_Sullivan]

Greetings,

May you help to understand what this element is?

I think this is controlled current source, but I am not sure. What is the "G" letter mean? Gain? 

Also, I can't find this element in Multisim sources list.

Don't shame me,  I am newbe in circuit diagrams building.

Using Multisim version 14.3, educational edition.

[tipa · Accepted solution]

Привет! Это источник постоянного тока 10 мА из предыдущих версий,   или другой системы обозначений.

[James_Sullivan]

Thanks a lot! / Большое спасибо!

[GGoodwin]

It seems like the G in the symbol does not stand for Gain. It stands for Guess.