Here are two old transistor sets that belonged to my grandparents...
I guess they aren't "pocket" sets, though they could probably fit in a coat pocket.
The brown leather set is an AM only Regency TR-5, I don't have the right bettery, it took a "sqaure" 9V battery, but when I put in a regular 9V, it won'y work, thought I go it to work one by connecting a 9V adaptor.
The second set is a Philco AM/FM form Japan, I don't knwo the model.
Sadly, my grandma had a habit of leaving the battteries in everything she had after she put them away, including this radio. The corrosion has eaten away the battey contacts, as well as the wires connecting the batteries to the board, and to the power adaptor socket, I have to figure out the wiring, before I can evne plug in an adaptor to check it out.