Rubuta ci gaba ga wannan sakin layi - Harman shi ne babban abokin tarayya na tsohuwar kasuwancin dangi, Harman da Co., wanda mahaifinsa kuma babban abokin tarayya ne. Kasuwancin ya samo asali ne daga kasuwancin Lisbon kuma yana cikin manyan ma'amaloli tare da Fotigal a lokacin Girgizar Kasa ta Lisbon
na shekara ta 1755. Ga kotun Rasha, gidan ya kasance bankuna na rabin karni.