Mortar with small stone inclusions - which one is it?

Hello everyone, I am new here and would like to use your collective knowledge for some information. We have bought a house from the 80s that is fully faced with bricks. In some places, the mortar has broken out. Partly due to the previous owner’s drilling. Now I would like to buy this mortar to repair the damaged spots. It is a coarse mortar with small stone inclusions. Initial research was close to a so-called "Historischen Mauermörtel". Unfortunately, I cannot upload a picture. My rights are limited. Does anyone know what type of mortar this is and where I can buy it? Or a similar mortar that does not differ too much from the one shown? That would be great. Thank you very much in advance. Regards, Benny