Gender: boy
School:
School #14B
I did a search of the name Izrael Sender and I came out with two that matched between 1926 and 1931.
The first name I found was Izrael Icchok Sender born in 1929. The second name I found was Izrael Szulem Sender born 29/4/1929. I believe these are the same boys because they both lived at SULZF 25 flat 12.