Master Lock Combination From Serial Number I Forgot My Combination To My Lock, Can Anyone Help Me Before Monday?

I forgot my combination to my lock, Can anyone help me before monday? - master lock combination from serial number

This is something important, but I want to open it. My father is a welder, said he could get some time on Monday or any other place in the course of the week. If it locksmiths who have their Master Lock Code Book, or whatever is ready, then you can use a combination of serial number find (rear) that would be great. The number is 903,783

Thank you,

Don