These are my finds today.

FM Units; (left to right) SRF-16W, SRF-40W, SRF-201. I'm most exited about the FM Card Walkman, it it super thin and it came with a charger. Don't know if it works yet as the headphone cord was cut.





Also found these other units; (left to right) Sony WM-3, Toshiba Walky KT-RS31 and Sony FX70.

Great additions all of them. The Sony Credit Card FM is very very rare indeed. I have one with Green stripes on front. A word of caution. The button battery cell inside of mine was leaking badly and it was hell to remove... the screws on this when you go to remove the other side starts to turn. You really can NOT hold them to stop turning. Two would not come out. In process I found out that the paint on these does not adhere well to the metal it flakes off badly.. very hard to work on. I have working headphones and without orig. your in trouble as the plug is a slide on type unique to this player. Player only turns on with headphone contacts working well ( like WM-10 series). It will play even if internal battery bad when inserted to the battery pack charger. Actually excellent quality sound and hard to believe plays very loud. Good luck.
Love the Toshy these usually have excellent sound just never press FF or Rew.

I believe have the same blue walkmanradio!