After Parry's plastic surgery he returned to stay at his friend George's house only to find him murdered. Desperate and with no other option he goes to Irene's Telegraph Hill apartment, taking a route that leads up the steep lower Filbert Steps that climb from Sansome to Montgomery (map).
Then ... He gets heckled by a couple of louts as he climbs the steps.
... and Now, the wooden steps on this section have since been upgraded to concrete and metal.
Then ... He continues the climb and is seen below passing two old cottages, 228 (on the right) and 230 Filbert. No. 228 dates back to 1882 and is one of the surviving architectural gems of early Telegraph Hill; it was glimpsed in an earlier scene from Irene's patio.
... and Now
... on the set ... Below on the left is an archival photo of 228 Filbert showing its ground floor level and balcony. On the right is a photo taken outside the cottage while filming.
... and Now, this flight of steps is still exactly as it was ... OK, so there's a handrail and a little more moss now.