FIDDLEBACK SPOON MAKERS MARKS HELP PLEASE

I hope someone can assist me with my enquiries, I know that the spoon is not silver due to it having EP stamped on it but am intrigued who made it and what the other marks stand for and possibly how old the spoon might be. I have tried taking a picture of the markings but due to a not so good camera the markings cannot be caputred. it says HA & SL above that in a circle EP and above that the letter A
Thankyou in advance :smiley: