的旧

old

→ 的
phrase Rare #14,144
old 的 links a possessive or other modifier to the noun; 旧 means “old.” The two characters usually aren't translated together as a separate phrase.
CH: 我的旧手机还可以用。
EN: My old phone still works.

那是我办公室的旧电话号码

That was my office's old phone number.

— 烈日灼人 (1994)

我提议让她接手克里斯的旧船厂。

I suggest having her take over Chris’s old shipyard.

切好的旧鱼饵。

Chopped-up old fish bait.

你记得我们的旧警察局长吗?

Do you remember our former police chief?

— 东京物语 (1953)