help on razor Id

hello I'm new to the straight razor world and after searching around for quite some time this looks like the place to be for a beginner such as my self.I enjoy the razors and shaveing and love makeing things sharp.I have aquired a small collection of razors of varying quality and manufactors to practice my honeing and shaveing with.I have found a nice challenge in cleaning up and honeing vintage razors that no body has cared fore for probably much longer than I've been alive.The shaveing has gone better then expected but i'm still searching out that perfect shave.As I collect my razors I like to date them and collect any info on them I can as I'm sure most of you do.I would like some help on one of my razors I cheaply collected on ebay.It is a pauls brothers made in germany on the other side it has the letters ECHO or FCHO and on the blade it reads extra hollow ground fully warranted it has cream yellow scales with a brass pin in the back and a silver pin of some sort thru the blade.Thanks for any help thats available. Keith