I have made this 'wax seal' available in various formats - .OBJ .fBX and .C4D
Although the Cinema4D (.C4D) format is 'adaptable' - by that I mean I have made it as two modular templates, that you can change to add your particular logo or shape/icon. (This was modelled in Cinema4D R20, but may also 'work' in R18; R19; and of course R21)
The 'wax texture' is included...
(The 'best' way to create and substitute your own shape/icon, is to create it in Adobe Illustrator and save it out as a version 8 .ai file... then you can import it into Cinema4D)
I have included a short video to show you how it looks as the text or icon is 'pressed into the wax'...