I believe it is in saffron city
Silph co is the very large building in saffron city.
The Silph Co. building is located in Saffron City. Walk into the entrance to get in.
in the silph co. building.
Silp co is a building in Saffron City. If you met Silph Scope, it is in rocket hideout, rocket game corner in celadon city.
That building is in saffron city.
in saffron city big building
you have to beat the gym leader
Its on the 5th floor.
You can find it in Silph Co. (received from the President of the company). Silph Co. is the big building in Saffron City.
The largest building in Saffron City...
safron city
he is in the Silph Co building in Saffron City where he held hostage the president of Silph Co.