I think the driver is the right one, otherwise it would show nothing, wouldn't it?
A SH1106 display will work when using a SSD1306 library but shifted left 2 columns.
Some SainSmart OLED displays have the SH1106 controller like this 1.3" display.
Several of the 1.3" OLED displays I bought on ebay have SH1106 controllers.