Degree symbol with TomThumb font

[inrepublica]

I'm trying to use TomThumb with my little project. I use a wemos d1 mini pro (ESP8266) and the wemos OLED shield (64*48 SSD1306). Here is my project -> my project

When i use the default font no problem degree symbol is used:

  display.setFont();
  display.setTextSize(1);
  display.setTextColor(WHITE);
  display.setCursor(0,10);
  display.print(t);display.print("\xA7");display.print(" ");display.print(h);display.print("%");

But when i use the tomthumb font, nothing is displayed:

display.setFont(&TomThumb);
display.setTextSize(1);
display.setTextColor(WHITE);
display.setCursor(0,47);
display.print(t);display.print("\xB0");display.print(" ");display.print(h);display.print("%");
display.display();

Sorry for my bad english ;-(