Toshiba RC-K4 AM/FM Clock Radio

This Toshiba RC-K4 I found on eBay.

This is going in my Toshiba clock collection.

My Toshiba clock collection, a work in progress:
RC-K1
RC-K4
RC-K5

I have up to the RC-K5, I'm not sure if the RC-K1 and K2 exist. If you have any information on those Toshiba clock please contact me.