Hello!
Your 5¢ note is from the 8th series of Gas Bar notes, it should have Sasaki / Billies signatures. From the condition you describe, it would catalog as a VG. Unless it it used as a hole filler, it would not be worth keeping. There were 2.65 million printed and they are not rare.
As for the 25¢ note, it is from the 9th and last series of Gas Bar notes, it should have the Heuman / Groussman signatures. It sounds like it could catalog as a Fine. There were 1.9 million printed and it is not worth much more than double face to a collector.